# ChangeLog

For better reproducibility, specific versions of ObsPy can be cited using the DOIs assigned to releases of ObsPy.

    1.1.1: (doi: 10.5281/zenodo.1040770)
     - General:
       * Tests pass with numpy 1.14 (see #2044).
       * Map plots now also work with matplotlib >= 2.2 (see #2089).
     - obspy.core:
       * UTCDateTime now raises a meaningful exceptions when passing invalid or
         out-of-bounds 'julday' during initialization (see #1988)
       * Fix pickling of traces with a sampling rate of 0 (see #1990)
       * read_inventory() used with non-existing file path (e.g. typo in filename)
         now shows a proper "No such file or directory" error message (see #2062)
       * Fix Trace.times(type='matplotlib') being slow (see #2112)
       * read_events() and read_inventory() now trial most common plugins first
         (QuakeML/StationXML, ...) in case of automatic file format detection (i.e.
         when file type was not explicitly specified, see #2113)
       * Event instances with Origin instances that have do not have defined
         latitude/longitude attributes will no longer raise a TypeError when
         creating a string representation (see #2119 and #2127).
       * Fix Stream.get_gaps() when a trace is completely overlapping another trace
         (see #2218).
       * Fix Exception when comparing ComparingObjects (see #2220).
       * Fix UTCDateTime.strftime() when year is <1900 on Python 2 (see #2167)
       * Inventory objects are more convenient to create now. Network, station, and
         channel codes can now be optional. Additionally the source parameter of
         inventories must no longer be specified at init time (see #2307, #2314).
     - obspy.clients.arclink:
       * Raise a warning at import time that the ArcLink protocol will be
         deprecated soon (see #1987).
     - obspy.clients.fdsn:
       * Mass downloader: Priority lists are now correctly overwritten if `channel`
         and/or `location` are set (see #1810, #2031, #2047).
       * A few fixes and stability improvements for the mass downloader (see
         #2081).
       * Fixed routing startup error when running under certain locales (see #2147)
       * Update the IPGP mapping (see #2268).
       * Adding a mapping for the KNMI (see #2270) services.
     - obspy.clients.nrl:
       * Set input units of overall sensitivity to input units of first stage in
         NRL.get_response() (see #2248)
     - obspy.geodetics:
       * Fix the vincenty inverse calculation for equatorial lines (see #2282).
     - obspy.imaging:
       * Normalize moment tensors prior to plotting in the mopad wrapper to
         stabilize the algorithm (see #2114, #2125).
       * fix some map plotting issues with cartopy and local projection (see #2193,
         #2204)
     - obspy.io.ascii:
       * Fixes an issue with the time representation (see #2165, #2179).
     - obspy.io.cnv:
       * Bugfix when phase_mapping is passed as argument when writing a Catalog
         object to CNV (see #2001)
     - obspy.io.css:
       * Fix automatic filetype detection (see #2160 and #2162)
     - obspy.io.gcf:
       * Fix reading stream ID for station/channel code in header (see #2289,
         #2311)
       * Fix bitmask in getting compression code (see #2290, #2310)
     - obspy.io.mseed:
       * Ability to read files that have embedded chunks of non SEED data. (see
         #1981, #2057).
       * Fix util.get_start_and_end_time returning sample rate = 0 when sample rate
         = 1 (see #2069)
       * Avoid showing invalid warnings when guessing endian during parsing
         timestamps (see #1988)
       * util.get_record_information() now works correctly for negative sampling
         rate factors and multipliers (see #2030, #2191).
     - obspy.io.nordic
       * Bug-fix for amplitudes without magnitude_hint (see #2021)
       * Bug-fix for wavefiles with full path stripping (see #2021)
       * Bug-fix for longitudes between -100 and -180 (see #2197)
     - obspy.io.reftek:
       * Fix problems reading some Reftek 130 files, presumably due to floating
         point accuracy issues in comparing timestamps. Internal representation of
         time stamps is changed to integer nanosecond POSIX timestamp (see #2036,
         #2038, #2105)
       * Fix a bug that prevents reading files that have no data in first channel
         (see #2101)
     - obspy.io.sac:
       * Allow passing on the byteorder flag from the top-level `obspy.read()`
         function (see #2285, #2292).
     - obspy.io.seiscomp:
       * Fix inventory read when maxClockDrift is unset in SC3ML (see #1993)
       * Fix the reading of FIR coefficients when multiple whitespaces in SC3ML
         (see #2259)
       * Fix the reading of the poles and zeros when multiple whitespaces in SC3ML
         (see #2260).
       * Fix reading files with zero sampling rates (see #2294 and #2293)
       * Fix divide by zero error when parsing sc3ml files of zero sampling rage
         (see #2294).
     - obspy.io.stationxml
       * Allow writing of dates before 1900 also on Python 2 (see #2013, #2015).
       * Write the UTC time zone specifier to all times (see #2015).
       * Units of first response stage as well as unit response stages are now
         determined with some heuristics (see #2250, #2318).
     - obspy.io.xseed:
       * Third condition to split blockettes when reading RESP files. Now more
         forgiving for slightly different files (see #2170, #2189)
     - obspy.signal:
       * Allow singular COUNT units in evalresp (see #2003, #2011).
       * Fix an evalresp issue in case of an analog PAZ stage zero denominator (see
         #2171 and #2190)
       * PPSD: for safety reasons, raise an ObsPyException if trying to read a PPSD
         npz file that was written with a newer version of the npz representation
         than is used by current ObsPy version (see #2051)
       * The ar_pick() trigger function now raises an error if the three data
         arrays don't have the same length (see #1801, #2148).
       * fix a precision issue in AR picker in case of low amplitude input (see
         #2252 and #2253)
     - obspy.taup:
       * Fallback to linear slowness interpolation for very small and shallow
         layers (see #2126, #2129).
       * Fix bug preventing constant-velocity models with discontinuities at every
         layer boundary from being built (see #2264).
       * More robust resize method so TauPy now works properly on Python 3.7 (see
         #2280, #2319).

    1.1.0: (doi: 10.5281/zenodo.165135)
     - General:
       * Read support for Guralp Compressed Format (GCF) waveform data,
         obspy.io.gcf (see #1449)
       * Read support for Reftek 130 (rt130) waveform data,
         obspy.io.reftek (see #1433)
       * Add Nordic format (s-file) read/write (see #1517)
       * Read and write support for events in the SCARDEC catalogue format
         (see #1391).
       * Read support for IASPEI ISF ISM 1.0 Bulletin event data,
         (see #1946)
       * Write support for AH (Ad Hoc version 1) format (see #1754)
       * Client to access the Nominal Response Library (NRL) (see #1185).
       * `obspy.read_inventory()` can now read dataless SEED and RESP files
         (see #1185).
       * change version number scheme for scenarios when no official version number
         can be determined (see #1889 and #1916)
       * Support for the IRIS Federator and EIDAWS FDSNWS web routing services
         (see #1779 and #1919).
     - obspy.core:
       * UTCDateTime is now based on nanoseconds (long) instead of a unix
         timestamp in microseconds (float) - resulting in higher precision and
         support for years 1-9999 (see #1325)
       * Ensure that Trace.data is always C-contiguous in memory (see #1732)
       * Event/ResourceIdentifier is now object aware, meaning even if two
         objects share a resource_id the distinct objects will be returned with
         the get_referred_object method provided both are still in scope. If one
         of the objects gets garbage collected, however, a warning will be issued
         and the behavior will be the same as before (see #1644).
       * Better error message when attempting to write invalid QuakeML resource
         ids (see #1699).
       * Stream/Trace.write() can now autodetect file format from file extension
         (see #1321).
       * New convenience property `.matplotlib_date` for `UTCDateTime` objects to
         get matplotlib datetime float representation (which can be used in
         time-based matplotlib axes, e.g. by Stream.plot(); see #1339).
       * Trace.times() has new options `type` and `reftime` to support fetching an
         array of sampletimes in various different timing varieties ("relative":
         the old default, float relative to trace starttime or `reftime` in
         seconds; "utcdatetime": absolute times as UTCDateTime objects;
         "timestamp": array of float POSIX timestamps, compare
         `UTCDateTime.timestamp`; "matplotlib": array of float matplotlib dates,
         useful for plotting on matplotlib time axes; see #1307)
       * A trace's stats.network/station/location/channel can now also be set in
         one line using a SEED ID string (e.g. `trace.id = "GR.FUR..HHZ"`,
         see #1439).
       * Instrument correction for response list stages originating from inventory
         objects (see #1514).
       * `Stream.rotate(...)` can now also be used to rotate unaligned channels to
         Z-N-E, given an Inventory (see #1310)
       * Non finite floats (NaN, inf, -inf) can now no longer be set for all
         event objects (see #1597).
       * Instrument responses can now also be calculated for a given list of
         frequencies (see #1598).
       * Order of extra tags for event type classes serialized to QuakeML can now
         be controlled by using an OrderedDict (see #1617)
       * Bode plots can now optionally plot the phase in degrees (see #1763).
       * `Stream.select()` now also works on the component level if channels only
         have one letter (see #1847).
       * Now strips all invalid characters from the temporary filenames used for
         downloading data using the `read_X()` methods (see #1958).
     - obspy.clients.earthworm:
       * Much faster trace unpacking (see #1762).
     - obspy.clients.fdsn:
       * empty SEED codes (e.g. ``network=''``) will now be properly sent to the
         server as options and not omitted, which led to wildcard matching (for
         details see #1578)
       * The mass downloader now has `exclude_networks` and `exclude_stations`
         arguments to not download certain pieces of data. (see #1305)
       * The mass downloader can now download stations that are part of a given
         inventory object.
       * The mass downloader now also works with restricted data. (See #1350)
       * No data (HTTP 204) responses now raise `FDSNNoDataException` rather than
         the more general `FDSNException`.
       * Fixing cross implementation of bulk waveform and station requests (see
         #1685).
       * Adding mappings for the TEXNET (see #1852) and the ICGC (see #1902)
         services.
       * Support for the non-standard EIDA token authentication (see #1928).
     - obspy.imaging:
       * The functionality behind the `obspy-scan` command line script has been
         refactored into a `Scanner` class so that it can be reused in custom
         workflows. (see #1444)
       * Almost always return the figure handle for the plots to make it work with
         the jupyter notebooks (see #1615).
     - obspy.imaging.cm:
       * new colormap: viridis_white. This is a modification of viridis that
         goes to white instead of yellow but remains perceptually uniform. It
         is especially useful for printing when an image should merge with the
         white background.
     - obspy.imaging.waveform:
       * Support for filling the wiggles when plotting sections (horizontal and
         vertical, see #1445).
     - obspy.io.arclink:
        * Read support for Arclink Inventory XML (see #1539)
        * default for `route` parameter in metadata requests is changed to `False`
          (see #1756)
     - obspy.io.ascii:
        * Custom formatting of sample values when writing SLIST and TSPAIR.
     - obspy.io.datamark:
        * Renamed without deprectation to obspy.io.win to match its original name.
          Datamark is a datalogger, saving the WIN format.
     - obspy.io.gse2:
        * Read support for GSE2.0 bulletin (see #1528)
     - obspy.io.nlloc:
        * Also parse author information and COMMENT line (see #1484)
        * Fix reading hypocenter files created by NonLinLoc versions of the 6.0.x
          beta branch (see #1760 and #1783)
     - obspy.io.quakeml:
        * Read and write support for nested custom tags (see #1463)
        * Fix some minor bugs that could lead to empty stub elements, e.g. like
          empty MomentTensor when reading and later writing again a QuakeML file
          with a FocalMechanism but no MomentTensor, potentially resulting in
          QuakeML files that breach the QuakeML schema (see #1896)
     - obspy.io.seiscomp:
        * Read and write support for SC3ML event (see #1638 and #1848)
        * Fix bug where files with arbitrary publicIDs and files with missing
          depth, latitude, longitude, or elevation tags could not be read
          (see #1817)
     - obspy.io.stationtxt:
        * Write support for stationtxt format (see #1466)
     - obspy.io.stationxml:
        * Read and write support for custom tags (see #1024)
        * No longer add the (unused) time zone field to StationXML datetimes to
          follow the example of big data centers. (see #1572)
        * Level of detail can be specified during inventory write (see #1830)
          using the level keyword (one of: network, station, channel, response).
        * Skip empty and incomplete channels during reading (see #1839, #1840).
     - obspy.io.segy:
        * Fixing an issue when comparing two still packed SEG-Y trace headers
          (see #1735).
        * Iterative reading of large SEG-Y and SU files with
          `obspy.io.segy.segy.iread_segy` and `obspy.io.segy.segy.iread_su`.
          (see #1400).
        * Write correct revision number (see #1737).
        * Textual headers will now always contain the file revision number and the
          end header mark if nothing else exists at these positions (see #1738).
        * The SEG-Y format detection now also checks the format version number
          (see #1781).
        * Enable reading SEG-Y files that have day of year 0 in trace header
          (see #1722).
        * Write textual file headers also if given as a text string
          (see #1811, #1813).
     - obspy.io.css:
       * Read support for NNSA KB Core format waveform data. (see #1332)
     - obspy.io.mseed:
       * New generic get_flags() utility function able to retrieve statistics
         about all fixed header flags and the timing quality. This makes the
         get_timing_and_data_quality() function obsolete which is thus
         deprecated and will be removed with the next release. The get_flags()
         function is also much faster. (see #1141)
       * Always hook up the libmseed logging to its Python counterpart to avoid
         some rare segfaults. (see #1658)
       * Update to libmseed v2.19.5 (see #1703, #1780, #1939).
       * Correctly read MiniSEED files with a data offset of 48 bytes (see #1540).
       * InternalMSEEDReadingError now called InternalMSEEDError and
         InternalMSEEDReadingWarning now called InternalMSEEDWarning as both
         can now also be raised in non-reading contexts (see #1658).
       * Should no-longer segfault with arbitrarily truncated files (see #1728).
       * Will now raise an exception when attempting to directly read mini-SEED
         files larger than 2048 MiB (#1746).
       * `.stats.mseed` attributes are no longer per-file but per-trace where
         applicable (see #1782).
       * `get_record_information()` - Don't fail if the word order is invalid.
     - obspy.io.nlloc:
       * Set preferred origin of event (see #1570)
     - obspy.io.nordic:
       * Add Nordic format (s-file) read/write (see #1517)
     - obspy.io.win:
       * see obspy.io.datamark.
     - obspy.io.xseed:
       * Added azimuth and dip to the get_coordinates() function. (see #1315)
       * Fixing some issues with the get_resp() output on Python 3 (see #1748).
       * Can now also parse RESP files (see #1185).
       * Can transform responses in the Parser object to ObsPy Inventory objects
         (see #1185).
     - obspy.scripts:
       * obspy-scan command line script now also plots and prints overlaps
         alongside gaps (see #1366)
       * obspy-plot now has option to disable min/max plot (see #1583)
     - obspy.signal:
       * fixed a bug in calibration.rel_calib_stack (resulting amplitude response
         had wrong scaling if using non-default "overlap_fraction", see #1821)
       * fixed a bug in coincidence_trigger() with event templates. when a template
         with mismatching SEED ID was encountered all following (potentially valid)
         templates were skipped as well (see #1850)
       * New obspy.signal.quality_control module to compute quality metrics from
         MiniSEED files. (see #1141)
       * New correlate function for calculating the cross-correlation function
         (new implementation based on Scipy).
         To calculate the shift of the maximum of the cross correlation use
         xcorr_max. The old xcorr function is deprecated but currently still
         exists (see #1585).
       * New obspy.signal.regression module to compute linear regressions, with or
         without weights, with or without allowing for an intercept. (see #1716,
         #1747)
       * add new plotting capabilities to PPSD (temporal variations per frequency
         and spectrogram-like plot) and also make underlying processed PSDs
         available via `PPSD.psd_values` property (see #1327)
       * Fixed bug in `rotate2zne()` for non-orthogonal configurations
         (see #1913, #1927).
       * Fixed build warnings in evalresp, partially backported from evalresp
         4.0.6 (see #1939).
     - obspy.taup:
       * Add obspy.taup.taup_geo.calc_dist_azi, a function to return the distance,
         azimuth and backazimuth for a source - receiver pair. (see #1538)
       * Fixing calculations through very small regional models. (see #1761)
       * Updated ray path plot method, added travel time plot method, and wrapper
         functions for both ray path and travel time plotting. (see #1501, #1877)

    1.0.3: (doi: 10.5281/zenodo.165134)
     - obspy.core:
       * properly pass through kwargs specified for Trace.plot() down to the
         low-level plotting routines (e.g. events were not shown properly in
         dayplot of a trace, see #1566)
       * properly pass through kwargs from Stream.detrend() to Trace.detrend()
         (see #1607)
       * Correctly splitting masked arrays in Trace objects for a couple of corner
         cases (see #1650, #1653).
     - obspy.core.event.source:
       * Fix `farfield` if input `points` is a 2D array. (see #1499, #1553)
     - obspy.clients.earthworm:
       * Better end of stream detection. (see #1605)
       * More efficient unpacking of server response. (see #1680)
     - obspy.clients.neic:
       * Better end of stream detection. (see #1563)
     - obspy.clients.seedlink:
       * Better end of stream detection. (see #1605)
     - obspy.clients.seishub:
       * Fix wrong kwargs `first_pick` and `last_pick` in
         `Client.event.get_list()`. (see #1661)
     - obspy.io.mseed:
       * ObsPy can now also read (Mini)SEED files with noise records. (see #1495)
       * ObsPy can now read records with a data-offset of zero. (see #1509, #1525)
       * ObsPy can now read MiniSEED files with micro-second wrap arounds.
         (see #1531)
       * ObsPy can now read MiniSEED files with no blockette 1000. (see #1544)
       * ObsPy now always writes Blockette 100 if sampling rate accuracy is
         otherwise lost. (see #1550)
       * obspy.io.mseed.util.set_flags_in_fixed_header() now works with Python 3
         and also for files with Blockette 100 (see #1648).
     - obspy.io.quakeml:
       * write StationMagnitude.residual even when it is zero (see #1625)
       * read & write Event.region
     - obspy.io.sac:
       * `SACTrace.lpspol` and `lcalda` are `True` and `False` by default, when
          created via `SACTrace.from_obspy_trace` with a `Trace` that has no SAC
          inheritance. (see #1507)
       * Reference time not written to SAC file when made from scratch
         (see #1575)
       * Reinforce ASCII encoding in reading non-ASCII SAC files regardless of
          default encoding setting. (see #1768)
       * Implementing encoding flag for reading/writing SAC files.
       * Fix passing through "byteorder" kwarg from obspy.read() (see #2292)
    - obspy.io.sh:
       * Fix writing of long headers for Python 3 (see #1526)
       * Whitespace in header fields is not ignored anymore (see #1552)
     - obspy.io.stationxml:
       * Datetime fields are written with microseconds to StationXML if
         microseconds are present. (see #1511)
     - obspy.io.zmap:
       * Use first origin/magnitude when writing to zmap if no origin/magnitude is
         set as preferred. (see #1569)
       * Parse origin time seconds as a float to avoid losing accuracy (see #1573)
     - obspy.signal:
       * PPSD: fix warning message on Python 3 that gets shown when waveforms and
         metadata mismatch (see #1506)
     - obspy.taup:
       * Allow for more than 10 phases with identical names (can happen for certain
         custom models, see #1593).

    1.0.2: (doi: 10.5281/zenodo.49636)
     - obspy.core:
       * Added workaround for numpy issue where many FFTs of various lengths fill
         a cache that never gets cleared, effectively creating a memory leak
         (see #1424).
       * Trace.filter and Stream.filter don't work on masked arrays anymore because
         it produced unpredictable results due to the un-initialized data-chunk.
         The uninitialized masked gap is now also initialized to np.nan in case
         of floating point data which and a consistent fill value in case of
         integer data. (see #1363)
     - obspy.clients.fdsn:
       * Fixing issue with location codes potentially resulting in unwanted data
         to be requested. (see #1422)
       * Included low-gain seismometers in default channel filters in
         mass-downloader, also included non-oriented channels by default
         (see #1373).
     - obspy.db:
       * Fixed a bug in obspy-indexer command line script (see #1369,
         command line script was not working, probably since 0.10.0)
     - obspy.imaging:
       * Fixed a bug that leads to pressure/tension color blending when plotting
         semi-transparent DC beachball patches (i.e. with "alpha" not equal to 1,
         see #1464)
       * Fixed a bug when plotting non-DC beachball patches without fill colors
         (i.e. with "nofill=True", see #1464)
       * Fix arbitrary units in waveform section plot's offset axis, making it
         possible to add customizations to the plot afterwards (see #1382, see
         #1383)
     - obspy.io.ascii:
       * Fixed a bug that lead to wrong header information in output files when
         writing non-integer sampling rate data to SLIST or TSPAIR formats
         (see #1447)
    - obspy.io.cmtsolution:
       * Make sure newer CMTSOLUTION files can also be read (see #1479).
     - obspy.io.gse2:
       * Fixed a bug that could lead to network code not present in GSE2 output
         (see #1448)
     - obspy.io.mseed:
       * Fixed a bug in obspy-mseed-recordanalyzer (see #1386)
     - obspy.io.nlloc:
       * Use geographic coordinates from the NonLinLoc Hypocenter-Phase file if
         no custom coordinate converter is provided. (see #1390)
       * Fix reading NonLinLoc Hypocenter-Phase files with more than one
         hypocenter in it. (see #1480)
       * Fix reading NonLinLoc Hypocenter-Phase files with unicode characters in
         them. (see #1483)
     - obspy.io.quakeml:
       * Fixed issue with improperly raised warnings when the same file is read
         twice. (#1376)
       * Fix writing empty network/station/channel codes in WaveformStreamID
         objects to QuakeML. (see #1483)
     - obspy.io.sac:
       * Try to set SAC distances (dist, az, baz, gcarc) on read, if "lcalda" is
         true.  If "dist" header is found, distances aren't calculated.
       * SACTrace class returns header values as native Python types instead of
         NumPy types.
       * SACTrace.iqual is no longer accepts enumerated string values, but
         arbitrary integer values. (see #1472)
       * SACTrace.read now replaces non-ASCII and null-termination characters in
         string headers with whitespace unless the "debug_strings=True" flag is
         used. (see #1432)
     - obspy.io.stationxml:
       * Always set the number attribute for poles and zeros. (see #1481)
     - obspy.signal:
       * PPSD.plot(): fix plotting of percentiles, mode and mean and setting
         period limits when using "xaxis_frequency=True" (see #1406, #1416)
       * Work around a bug in SciPy that results in wrong results for bandpass
         filter when using Nyquist frequency (or higher) as high corner of the
         passband (see #1451)
     - obspy.taup:
       * Fixing path for Pn. (see #1392)

    1.0.1: (doi: 10.5281/zenodo.48254)
     - General:
       * Some methods might have unnecessarily upcasted float32 arrays to float64.
         Now methods for which it makes sense and which don't lose accuracy don't
         upcast float32 arrays. Integers are still upcasted. Trace.resample() will
         also no longer return the original dtype which might have resulted in a
         large loss of accuracy but it now always returns float64 arrays.
         (see #1302)
     - obspy.core:
       * Trace.normalize() does no longer divide by zero in case an all-zeros
         data trace is being used. (see #1343)
       * Inventory.select() and consorts now behave as expected even with empty
         child elements. (see #1126, #1348)
       * Code formatting is no longer checked for clean release versions. Thus
         updates to the linters no longer break the tests for releases.
         (see #1312)
       * remove_response(..., pre_file=None, plot=True) works again. (see #1320)
     - obspy.clients.arclink:
       * Restored ArcLink encryption support. (see #1352, #1347)
     - obspy.clients.fdsn:
       * Local URLs are now recognized as valid URLs. (see #1309)
       * Some bug fixes for the mass downloader. (see #1293, #1304)
       * The NOA node has been added to the list of known nodes.
         (see 2347a25714bc3e16068031f4b6138fafd627d34e)
     - obspy.io.sac:
       * More automatic merging of SAC and ObsPy headers. The new `obspy.io.sac`
         modules thus behaves more like the old one and more in line with
         expectations of users. (see #1285)
       * No more out of bounds errors when assigning coordinates. (see #1300)
       * The evdp header can be set again. (see #1345)
       * Correctly propagating sampling rate changes to the SAC headers.
         (see #1317)
       * Always set nvhdr, leven, lovrok, iftype to ensure valid SAC files.
         (see #1204)
     - obspy.io.xseed:
       * The Parser.get_paz() method now works with multiple blockette 53s.
         (see #1281)
     - obspy.taup
       * Fixed wrong azimuth direction for paths > 180 degrees distance (see #1289)
       * Azimuth is appended to arrivals as well (see #1289)
       * Fixed issue with taup cache function on Python 2.7. (see #1308)

    1.0.0: (doi: 10.5281/zenodo.46151)
     - General:
       * Requirements have been increased to reflect latest distributions:
         * Removed support for Python 2.6.
         * Added support for Python 3.5.
         * matplotlib >= 1.1.0 is now required.
         * numpy >= 1.6.1 is now required
         * scipy >= 0.9.0 is now required
       * Reorganized the submodule structure. We provide a deprecation path so the
         old imports will continue to work for one ObsPy version.
       * Consistent naming scheme across the code base. This results in some
         functions having different names. Most things that worked with ObsPy 0.10
         will continue to work with this version, but starting with the next
         version they will fail. Pay attention to the deprecation warnings.
       * Support for additional waveform data formats:
         - Read support for the ASCII format for waveforms from the K-NET and
           KiK-net strong-motion seismograph networks.
       * Support for additional event data formats:
         - CMTSOLUTION files used by many waveform solvers.
         - ESRI shapefile write support, useful in GIS applications (see #1066)
         - Google Earth KML output.
       * Support for additional station data format:
         - The FDSN web service station text format can now be read.
         - Read support for the NIED's moment tensor TEXT format (see #1125)
         - Google Earth KML output.
         - Read support for SeisComP3 inventory files.
     - obspy.core:
       * New method for generating sliding windows from Stream/Trace windows.
         (see #860)
       * Stream/Trace.slice() now has the optional `nearest_sample` argument from
         Stream/Trace.trim().
       * Trace.remove_response() now has `plot` option to show/output a plot of all
         individual steps of instrument response removal in frequency domain
         (see #1116).
       * New method Stream/Trace.remove_sensitivity() to remove instrument
         sensitivity
       * Fix incorrect parsing of some non-ISO8601 date/time strings. (see #1215)
       * Added plotting method to Event (customizable subplots from a selection
         of map, beachball and farfield radiation plots, see #1192)
     - obspy.clients.fdsn:
       * Replace FDSN webservice shortcut `NERIES` with `EMSC` and deprecate the
         `NERIES` shortcut, will be removed in a future release (see #1146).
       * Now requests gzipped data for the XML files. Much smaller files!
       * The station service can now also be used to download files in the text
         format. This has limited information but is much faster.
       * New mass downloader to assist in downloading data across a large number
         of FDSN web services.
       * Catch invalid URLs when initialising Client and avoid confusing error
         messages (see #1162)
     - obspy.clients.filesystem.sds:
       * New client to read data from local SDS directory structure (see #1135).
       * Command line script `obspy-sds-report` to generate html page with
         information on latency, data availability percentage and number of gaps
         for a local SDS archive (see #1202)
     - obspy.clients.neries:
       * Removed the dedicated client. Data can still be accessed by using the FDSN
         client.
     - obspy.clients.syngine:
       * New client for the IRIS Syngine service to retrieve custom synthetic
         seismograms.
     - obspy.imaging:
       * Experimental support for Cartopy when plotting maps. Use the `method`
         argument to functions that plot maps to select between Basemap or Cartopy.
       * New default colormap for all plots. A backport of the new viridis colormap
         from matplotlib is available for those using older matplotlib releases.
       * Added plotting routines for farfield radiation patterns of moment tensors
     - obspy.io.kml:
       * New module for Google KML output of Inventory and Catalog objects
         (e.g. for use in Google Earth)
     - obspy.io.mseed:
       * Upgrade to libmseed 2.16
     - obspy.io.seiscomp.sc3ml:
       * New module reading SeisComP3 inventory files to ObsPy inventory objects
         (see #1182).
     - obspy.io.shapefile:
       * New module for ESRI shapefile write support (see #1066)
     - obspy.io.stationtxt:
       * New module reading the FDSN station files.
     - obspy.signal:
       * Switch to second-order sections for filters; backported from SciPy 0.16.0
         (see #1028)
       * New Lanczos interpolation/resampling (see #1101)
       * Higher order detrending methods (see #1173)
       * PPSD (see #931, #1108, #1130, #1187):
         - Algorithm for PSD computation was improved, especially affecting results
           at long periods (for detailed discussion see #931 and #1108).
         - Keywords `paz` and `parser` were removed in favor of new keyword
           `metadata`. PPSD now accepts `metadata` in a much wider range
           of formats:
              * Inventory objects (e.g. from StationXML or from FDSN webservice)
              * obspy.io.xseed Parser objects (e.g. from dataless SEED file)
              * filename of a RESP file
              * dictionary with poles and zeros information (like in
                prior versions)
           Most old codes should still work, issuing a deprecation warning, but
           old code that specifies *both* `paz` and `parser` keywords will raise
           an exception.
         - Whenever possible (i.e. when using for `metadata` an Inventory,
           a Parser or a RESP file), response calculation now takes into account
           the full response (all stages) as opposed to only using the poles and
           zeros response stage (as was done in previous versions when using a
           Parser object). When using a poles and zeros dictionary response
           calculation is unchanged (as no information on other stages is
           available, of course).
         - PPSD now stores the psd for each time segment that gets processed,
           instead of only storing the stacked histogram. That way, differing
           custom stacks with various selection criteria (e.g. time of day, by
           weekday, etc.) can now be made from the same processed data
           (see #1130).
         - New save/load mechanism using numpy .npz binary format that circumvents
           some problems with the old pickle mechanism:
           `PPSD.save_npz()` and `PPSD.load_npz()` (and `PPSD.add_npz()` to add
           data from additional npz files)
         - Change default colormap to new obspy default sequential colormap
           (matplotlibs new viridis colormap). The old PQLX colormap is provided by
           `obspy.imaging.cm.pqlx` and can be used with
           `PPSD.plot(..., cmap=...)`.
         - new option `PPSD.plot(..., cumulative=True)` for a cumulative plot of
           the histogram, i.e. a non-exceedence percentage visualization, similar
           to the `percentile` option.
         - x axis in `PPSD.plot()` can be switched to frequency in Hz with
           `PPSD.plot(..., xaxis_frequency=True)` (see #1130)
         - changes to special handling of rotational: now handled by kwarg
           `special_handling="ringlaser"` (kwarg `is_rotational_data` is
           deprecated, see #916)
         - special handling option for hydrophone data (no differentiation, see
           #916)
         - bin width on frequency axis can now be controlled using
           `PPSD(..., frequency_bin_width_octaves=...)` (in fractions of octaves,
           default is the old fixed setting of 1/8 octaves as in PQLX)
     - obspy.taup
       * Added support for nd file format for input velocity models. Allows for
         named discontinuities at arbitrary depths allowing for less Earth like
         models (see #1147).
       * Added three methods (`get_travel_times_geo()`, `get_pierce_points_geo()`
         and `get_ray_paths_geo()`) to `TauPyModel` to handle station and
         event location data as latitude and longitude, instead of the source to
         station distance in degrees. In addition `get_ray_paths_geo()` and
         `get_pierce_points_geo()` decorate the returned pierce points and ray
         paths with the latitude and longitude of each point. Some functionality
         needs the `geographiclib` module to be installed. (See #1164.)
       * ObsPy now ships with a bunch of new velocity models in addition to the
         existing ones: `prem`, `sp6`, `1066a,b`, `herrin` (See #1196).
       * Add support for buried receivers (see #1103.)
       * Port more accurate calculation of ray parameter from Java. The effect is
         stronger for longer phases, but also corrects issues with shorter body and
         surface waves (see #986.)
       * Fix incorrect branch splitting which also caused issues for extremely
         shallow phases (see #1057.)
       * Proper cache for model splits resulting in much faster calculations if
         the source depth is repeatedly the same (see #1248).

    0.10.3: (doi: 10.5281/zenodo.46150)
      - obspy.core:
        * Fix reading of multiple catalog files using globs (see #1065).
        * Fixed a bug when using
          `Trace.remove_response(..., water_level=None)`.
          With that setting that is supposed to not use any water level
          stabilization in the inversion of the instrument response
          spectrum actually the instrument response was never inverted and
          thus instead of a deconvolution a convolution was performed
          (see #1104).
        * Fixing floating point precision/rounding issue with UTCDateTime when
          initializing with floating point seconds, i.e. with microseconds,
          that could lead to microseconds being off by 1 microsecond
          (see #1096)
        * Correct gap/overlap time returned by Stream.get_gaps() and printed
          by Stream.print_gaps() which was incorrect by one time the sampling
          interval (see #1151)
        * Stream.get_gaps(): return overlaps specified in units of samples
          as negative integers (see #1151)
      - obspy.fdsn:
        * More detailed error messages on failing requests (see #1079)
        * Follows redirects for POST requests (see #1143)
      - obspy.imaging:
        * fix some bugs in `obspy-scan` (see #1138)
      - obspy.mseed:
        * Blockette 100 is now only written for Traces that need it. Previously
          it was written or not for all Traces, depending on whether the last
          Trace needed it or not. (see #1069)
        * Fixed a bug that prevented microsecond accuracy for times before 1970
          (see #1102).
        * Updated to libmseed 2.17.
      - obspy.signal:
        * Bug fixed within rotate.rotate2zne(). Additionally it can now also
          perform the inverse rotation (see #1061).
        * Bug fixed in triggering. When using option `max_len_delete` and a trigger
          occurred right before the end of data, one trigger was potentially lost
          (see #1145 for details).
      - obspy.station:
        * Plotting responses across multiple channels is more robust now in
          presence of some strange channels (e.g. with zero sampling rate,
          happens e.g. for state of health channels, see #1115)
        * ObsPy no longer assumes that the StationXML namespace is the default
          namespace (see #1060).
        * Checking if a file is a StationXML file is less rigorous (and much
          faster) now (not checking strict validity against xsd schema but
          only looking for a FDSNStationXML root element, see #1114).
          This means that `read_inventory()` without explicitly specified
          format will correctly detect more files as StationXML that have very
          slight breaches of the schema but still can be interpreted as
          StationXML.
        * fix saving `xcorrPickCorrection()` results to an image file (see #1154)
      - obspy.taup:
        * Calculating arrival times for surface waves now works (see #1055)
        * Calculating arrivals for underside reflections now works (see #1089)
      - obspy.y:
        * correct misspelled name of a Y specific header field (see #1127)
      - obspy.zmap
        * Add support for time values with sub-second precision (see #1093)

    0.10.2: (doi: 10.5281/zenodo.17641)
     - obspy.core:
       * Fix catalog plot with events that have no origin depth or
         origin time (see #1021)
     - obspy.datamark:
       * Fix datawide=3 and datawide=0.5 block reading (see #1016)
     - obspy.earthworm:
       * Fix Python3 compatibility problem
     - obspy.imaging:
       * Fix flipped maps due to bug in Basemap
       * Fix handling of velocity reduction in section plots with degree offsets
         (see #1029)
       * Allow section plots over existing figures by not modifying existing lines
       * Don't prematurely close waveform figure if returning its handle
     - obspy.seedlink:
       * Fix Python3 compatibility for seedlink.easyseedlink
       * Basic seedlink client: Properly timeout requests with valid station
         selection but no data available in selected time window (see #1045)
     - obspy.signal:
       * Fix return data types/values of polarization routines (see #1026)
     - obspy.station:
       * Fix URL to FDSN StationXML schema in StationXML output (see #1023)

    0.10.1: (doi: 10.5281/zenodo.16248)
     - minor changes for correct distribution of official release
       tar/zipball (see #993, #994)
     - one minor encoding-related bugfix in mopad script (see #992)

    0.10.0: (doi: 10.5281/zenodo.16200)
     - Highlights:
       * Python3 support
       * anaconda support
       * New formats: AH, CNV, Kinemetrics EVT, NDK, NLLOC, PDAS, ZMAP
       * ObsPy licensed under LGPL v3.0 now as a whole.
     - General:
       * Support for Python 3.3 and 3.4 in addition to 2.6 and 2.7
       * ObsPy licensed under LGPL v3.0 now as a whole.
       * More generic processing history for most Stream and Trace methods.
       * Now requires NumPy >= 1.4.0
       * Now requires SciPy >= 0.7.2
       * Tested compatibility with most major Linux distributions still
         receiving updates.
       * The next major obspy release (0.11) will drop support for:
         * Python < 2.7
         * matplotlib < 1.1
         * numpy < 1.6
         * scipy < 0.10
     - obspy.ah
       * New submodule for reading the AH (Ad Hoc) waveform format
     - obspy.arclink:
       * add support for Poles and Zeros type "B" (Analog, Hz), see #899
     - obspy.core:
       * Preview waveform plot improved: interactive updating of ticks and
         ticklabels, correct ticklabels for sub-minute zoom level (#657)
       * fixed a problem with UTCDateTime with timestamps of far future
         dates (larger than 2038, often seen in StationXML end dates,
         see #805)
       * Support for basic custom namespace tags in QuakeML I/O (see #454)
       * `interpolate()` method for Stream/Trace objects.
       * Dictionary values added to an AttribDict will now be converted to an
         AttribDict.
       * Removed custom OrderedDict backport for Python 2.6. Now relies on the one
         provided by the future package.
       * Renamed 'type' argument to 'method' in the Trace.differentiate() method.
       * Renamed 'type' argument to 'method' in the Trace.integrate() method.
         Additionally, several broken alternate methods have been removed.
       * new plugins for NonLinLoc formats for readEvents() and
         Catalog/Event.write() (see obspy.nlloc and #900)
       * The wrap_long_string utility function is deprecated. Users may use the
         textwrap module which provides similar functionality.
       * new plugin for CNV event format (used by VELEST) for
         Catalog/Event.write() (see obspy.cnv and #905)
       * better customizable control during merging traces with sub-sample shift
         of sampling points (see #980)
     - obspy.cnv:
       * new plugin to write CNV event files (used by VELEST) from
         Catalog/Event objects. (see #905)
     - obspy.css:
       * Support for little-endian binary and ASCII files (see #881).
       * Support exporting Inventory objects to CSS relations.
     - obspy.fdsn:
       * WADL files are cached per Python process.
       * Bulk station downloading using POST requests.
       * Support for FDSNWS 1.1, e.g. the `matchtimeseries` parameter for the
         station service.
     - obspy.imaging:
       * Maintain beach ball aspect ratio through optional axes argument (see
         #734)
       * Refactored Catalog.plot() into helper routine
         obspy.imaging.maps.plot_basemap() (see #753).
       * The projections of Catalog.plot() have been modified slightly to provide
         equal-area projections:
         * The `"cyl"` projection is now named `"global"`. It is now the Mollweide
           projection.
         * The '"local"` projection now uses the Albers Equal Area projection.
     - obspy.kinemetrics
       * New submodule for reading the Kinemetrics EVT waveform format
     - obspy.mseed:
       * Support for reading and writing all encodings supported by libmseed.
       * proper error reporting while reading
       * `details=True` when reading will now write to
         `Trace.stats.mseed.blkt1001.timing_quality` instead of
         `Trace.stats.mseed.timing_quality`.
       * The timing quality will now also be written to a file if it is set.
       * Non-existing values when reading with `details=True` will now be set to
         `False` instead of `-1`.
       * New utility function `obspy.mseed.util.set_flags_in_fixed_header()`
         giving the ability to overwrite flags in the fixed header of existing
         MiniSEED files.
       * The sequence number of the first record of each Trace can now be
         specified when writing MiniSEED files.
       * `obspy-mseed-recordanalyzer`:
           - Bugfix: when specifying an out-of-bounds record number, information
             about the last record in the file was displayed (see #957). Now a
             proper error message is shown and the command line script exits
             with non-zero exit code.
           - Faster reading of a single record header
           - Added option "-a" to print information of all records
       * upgrade to libmseed 2.15
     - obspy.ndk:
       * New submodule able to read NDK files from the Global CMT project.
     - obspy.neries:
       * The whole module is deprecated and will be removed with the next major
         release. To access EMSC event data please use the obspy.fdsn client
         (use `Client(base_url='NERIES', ...)`), for access to ORFEUS waveform
         data please use the obspy.fdsn client (use
         `Client(base_url='ORFEUS', ...)`) and for travel times please use
         obspy.taup.
     - obspy.nlloc:
       * new plugins to write NonLinLoc Phase observations files from
         Catalog/Event objects and to read NonLinLoc Hypocenter-Phase file into
         Catalog/Event objects. (see #900)
     - obspy.pdas:
       * read support for PDAS waveform files
     - obspy.sac:
       * New `byteorder` option for writing sac files to disk.
       * Can now read/write from/to file-like objects like io.BytesIO and open
         files.
     - obspy.seedlink:
       * bugfix: INFO responses from the IRIS ringserver are now parsed
         correctly (see #807)
       * New submodule `easyseedlink` providing an easier way to create
         SeedLink clients
       * New `Client` class providing a basic seedlink client for individual
         requests of finite time windows (i.e. non-continuous programs)
       * Fix memory leak in `SLClient` (MiniSEED record leak in packet parser,
         see #918)
     - obspy.seisan:
       * bugfix the actual data were misaligned by one
     - obspy.seishub:
       * use specified timeout in all requests to server (see #786)
       * Helper method `Client.event.getEvents()` to fetch a `Catalog` object
         from a seishub server of version 1.4.0 or higher.
     - obspy.signal:
       * Increased performance of PPSD plotting.
       * Interpolating methods. Wrappers around routines from scipy and a custom
         `weighted average slopes` method from Wiggins 1976.
       * PPSD has new methods to extract mean and mode of the histogram by
         frequency (see #804)
       * PPSD: water level in instrument correction can now be specified by user
         on PPSD initialization
       * New polarization analysis methods: flinn, vidale, pm
     - obspy.station:
       * add plotting methods (response/bode, location maps) to
         Inventory/Station/Channel/Response objects (see #750)
       * add get_coordinates method to inventory and network objects (see #740)
       * read/write support for DataAvailability tags in StationXML files.
       * write support for SACPZ ASCII representation of channel responses.
     - obspy.taup:
       * Replaced Fortran implementation with much more powerful Python port of
         Java TauP. This enabled us to drop all Fortran code, which simplifies
         releases and builds tremendously.
     - obspy.xseed:
       * add support for Poles and Zeros type "B" (Analog, Hz), see #899
     - obspy.zmap:
       * New module which adds ZMAP read/write support
     - scripts:
       * All scripts now require argparse instead of optparse.
       * All scripts now accept -V or --version to print version information.
       * obspy-dataless2xseed: -v and --version options are renamed to -x and
         --xml-version to not conflict with above option.
       * obspy-indexer: Options have been modified or amended slightly:
         * --data is a new alias to -d.
         * --db-uri is a new alias to -u.
         * --log is a new alias to -l.
         * --poll-interval is a new alias to -i.
         * --recent is a new alias to -r.
         * -a is a new alias to --all-files.
         * -f is a new alias to --force-reindex.
         * -H is a new alias to --host.
         * -p is a new alias to --port.
         * --check_duplicates is renamed to --check-duplicates.
         * --drop_database is renamed to --drop-database.
         * --mapping_file is renamed to --mapping-file.
         * --run_once is renamed to --run-once.
       * obspy-mopad: Options have been modified or amended slightly:
         * convert subcommand:
           * No changes.
         * decompose subcommand:
           * --input_system is renamed to --input-system.
           * --output_system is renamed to --output-system.
         * gmt subcommand:
           * --show_1fp is renamed to --show-1fp.
           * --show_isotropic_part is renamed to --show-isotropic-part.
         * plot subcommand:
           * --basis_vectors is renamed to --basis-vectors.
           * --full_sphere is renamed to --full-sphere.
           * --input_system is renamed to --input-system.
           * --lines_only is renamed to --lines-only.
           * --output_file is renamed to --output-file.
           * --pa_system is renamed to --pa-system.
           * --pressure_colour is renamed to --pressure-colour.
           * --show1fp is renamed to --show-1fp.
           * --show_isotropic_part is renamed to --show-isotropic-part.
           * --tension_colour is renamed to --tension-colour.
       * obspy-plot: --format option is accepted as an alias of -f.
       * obspy-print: Options have been modified or amended slightly:
         * --format is a new alias of -f.
         * --nomerge is renamed to --no-merge.
       * obspy-runtests: -a option is accepted as an alias of --all.
       * obspy-scan: Options have been modified or amended slightly:
         * --endtime is renamed to --end-time.
         * --event-times is renamed to --event-time. --event-time may be specified
           multiple times.
         * --ids is renamed to --id. --id may be specified multiple times.
         * --nox is renamed to --no-x.
         * --nogaps is renamed to --no-gaps.
         * --starttime is renamed to --start-time.

    0.9.2: (doi: 10.5281/zenodo.10648)
     - general:
       * fix installation on CygWin (see #755)
     - obspy.core:
       * bugfix: Input/Output to/from QuakeML was missing Amplitude
         elements (see #763)
       * fixing very slow response removal for some magic bad values of npts
         (see #715)
       * extend remove_response for polynomial responses
         (thanks to Sebastien/bonaime, see #566)
     - obspy.datamark:
       * bugfix: channel code now correctly read (4 hex char)
       * bugfix: channels can have different sampling rate
       * improvement: datawide 0.5 (4 bits) encoding now supported
       * century of data can now be specified
     - obspy.fdsn:
       * time out errors get raised properly now. timeout can be specified at
         Client initialization now. (see #717)
       * for advanced users: endpoints of any particular service can now be
         specified explicitly (see #754)
       * new known FDSN providers: 'ORFEUS', 'GFZ', 'NERIES'
       * more robust WADL parser
       * the `attach_response=True` argument now uses a faster approach to
         download the station data
     - obspy.imaging:
       * Fixing waveform plotting.
     - obspy.sac:
       * SAC files with two digit year header field are now interpreted as
         "19xx", same as done by SAC (see #779)
     - obspy.seedlink:
       * bugfix: different instances of a SeedLink connection had a shared
         state (see #561)
       * multiple smaller bugfixes (see #777)
       * trailing null characters are now stripped from INFO responses (see #778)
     - obspy.seg2:
       * numbers are now also recognized as months
       * now filters non-printable chars from the header enabling it to read some
         more files
     - obspy.signal:
       * the TF misfits now correctly use logarithmic axes instead of scaling an
         image
     - obspy.station:
       * some bugfixes in the obspy.station object classes (see #710)
       * more robust writing of StationXML in case of missing elements
     - obspy.taup:
       * bugfix: avoid a bug that caused multiple calls to taup to result in
         spurious unexpected results (see #728)

    0.9.0:
     -  general:
       * Added mock testing library.
     - obspy.arclink:
       * user keyword is now required during client initialization
     - obspy.core:
       * Stream/Trace.attach_response(): convenience method to attach response to
         traces from inventories.
       * new method Stream/Trace.remove_response() to remove instrument response
         from Response object attached to trace(s), e.g. after parsing a
         StationXML file. Similar to Stream/Trace.simulate(seedresp=...) for
         using a Parser object (from dataless or xseed) or RESP file, but less
         cluttered parameters and without the simulating a different instrument
         part.
       * Updated event classes to QuakeML 1.2 final.
       * Moved obspy.core.event.validate() to obspy.core.quakeml.validate()
       * The writeQuakeML() function, also accessible through
         Catalog.write(..., format="quakeml"), now has an optional keyword
         argument 'validate'. If True, the resulting QuakeML file will be
         validated against the QuakeML schema before being written. An
         AssertionError will be raised in case the validation fails.
       * validation of QuakeML against official schema working now
       * renamed obspy.core.util.types into obspy.core.util.obspy_types (#595)
       * new parameter replace for Enums which allows definition of replaceable
         keywords (fixes #531)
       * Trace.split() will return a stream object containing traces with unmasked
         arrays
       * trim(pad=True, fill_value=xxx) will return a NumPy ndarray as stated in
         the API documentation (#540)
       * read() supports now tar und zip archives and variants (tar.gz, tar.bz2)
       * new options for Stream/Trace.taper() to control the length of the
         tapering for all windowing functions and perform one-sided tapering
       * Many Stream and Trace methods are now chainable, e.g. st.taper().plot()
       * when using Stream/Trace.simulate(seedresp={...})) parameter "date" can
         now be omitted, start time of each trace is used for response lookup then
       * when using Stream/Trace.simulate(seedresp={...})) for parameter
         "filename" instead of the path to a local file now also can be provided
         either a file-like object with RESP information or an obspy.xseed.Parser
         object (e.g. created reading a dataless SEED file).
       * fix Stream.select() when using values like "" or 0, e.g.
         Stream.select(location="") or when filtering by component with a channel
         code less than 3 characters long (now these traces will be omitted from
         the result when filtering by component).
       * fix a bug when merging valid data into a masked trace (see #638)
       * event.ResourceIdentifier objects are now initialized with a QuakeML
         conform string by default, i.e. if no custom prefix is provided during
         initialization.
       * event.ResourceIdentifier.resource_id attribute was renamed to
         event.ResourceIdentifier.id
       * event.ResourceIdentifier now was has a method regenerate_uuid() that
         allows the random hash part to be regenerated for resource identifiers
         with no fixed id string (can be useful to generate a new hash if the
         referred object changes).
       * added a new test that asserts that the whole codebase is valid according
         to the flake8 tool.
       * inverse filtering of catalogs.
       * bugfix: Trace.simulate() now passes the SEED network, station, location,
         and channel identifiers to evalresp.
       * added command line script "obspy-print" to print information on local
         waveform files
       * check if ndim == 1 when setting Trace.data and raise if necessary,
         see #695
       * change waveform_id parameter in obspy.core.event.FocalMechanism to list
         of WaveformStreamID as specified in QuakeML docs (#633)
     - obspy.css:
       * new module for CSS (Center for Seismic Studies) format
       * currently read support for waveform data
     - obspy.db:
       * obspy-indexer script uses from now on hash symbols (#) instead
         of pipe (|) for features because pipe has a special meaning on
         most operating systems
     - obspy.fdsn:
       * new client module to access servers based on the FDSN web service
         definition (https://www.fdsn.org/webservices/)
     - obspy.gse2:
       * read/write STA2 header line which is officially mandatory but in
         pratice often not used
     - obspy.imaging:
       * more options to customize day plots
       * dayplot now plots matching picks (station, network, location) if a list
         of event objects is provided using the `events` kwarg.
       * obspy-scan: new option --print-gaps
       * added plotting of record sections
       * automatic merging can be disabled for obspy-plot
     - obspy.pde:
       * new module for reading NEIC PDE bulletin files into an obspy catalog
         object. Only the "mchedr" format (file format revision of February 24,
         2004) is supported.
     - obspy.realtime:
       * two new processing plugins (offset, kurtosis)
     - obspy.seg2:
       * adding read support for SEG2 data format code 1 and 2
         (signed 16bit/32bit integer)
     - obspy.segy:
       * fix a bug in plotting (see #689)
       * Removed the SEG Y benchmark plots. Now part of obspy/apps.
     - obspy.signal:
       * adding cross correlation single-station similarity checking with
         master event templates to coincidence trigger
       * new function for rotating arbitrarily oriented components to vertical,
         north, and east.
       * add PPSD support for segments of arbitrary length
       * default bin width of PPSD is changed to 1dB. This is the value used by
         McNamara and Buland 2004.
       * fix a bug when using evalresp with RESP files with very short epochs.
         see #631.
       * for seisSim(seedresp={...})) for parameter "filename" instead of the
         path to a local file now also can be provided either a file-like
         object with RESP information or an obspy.xseed.Parser object
         (e.g. created reading a dataless SEED file).
       * seisSim(seedresp={...}): the seedresp dictionary now requires network,
         station, location, and channel keys.
       * removed deprecated psd module - use spectral_estimation module instead
       * removed deprecated sonic function - use array_processing function instead
       * corrected function signature of c_sac_taper
     - obspy.station:
       * adding support for FDSN StationXML
     - obspy.mseed:
       * new kwarg arguments for reading mseed files: header_byteorder and
         verbose
       * libmseed v2.12
     - obspy.neic:
       * new module to access data from CWB QueryServer run at the National
         Earthquake Information Center (NEIC) in Golden, CO USA.
     - obspy.y:
       * adding read support for Nanometrics Y file format
     - scripts:
       * obspy-plot: new option "-o" to output plot to file instead of opening
         a window

    0.8.4
     - bugfixes to make ObsPy work with the latest Python 2.x and NumPy releases
     - critical bugfixes for the waveform plotting and the xml wrapper
     - bugfix so that copy.deepcopy() works with the obspy.core.stream.Stream
       class
     - fixing some imports

    0.8.3:
     - circumventing an issue in the current libmseed release that can lead to
       some float values being read in wrongly

    0.8.2:
     - fixing a bug in plotting methods of Trace and Stream
     - stream/trace.plot(type="dayplot") can display event information now

    0.8.1:
     - fixing a bug parsing QuakeML from a StringIO object using xml and
       autodetection

    0.8.0:
     - version numbering: one single, common version number for ObsPy now.
       Use "import obspy; print obspy.__version__"
     - discontinuing Python 2.5 support
     - most important classes/functions can be imported like "from obspy import
       ...", currently: read, Trace, Stream, UTCDateTime and readEvents
     - obspy.arclink:
       * refactored attributes in getPAZ to stick better with the SEED standard
     - obspy.core:
       * fixing preview generation for sampling rates containing floats
       * fixing deprecated_keywords decorator for the case of removed keywords
       * fixing SLIST and TSPAIR reading/writing of empty traces or traces
         containing only one or two data points
       * adding taper() method to Trace/Stream using cosTaper of ObsPy and also
         all scipy windowing functions
       * adding cutout() method to Stream
       * removed all deprecated UTCDateTime methods
       * adding a class and script to determine flinn-engdahl regions for given
         longitude and latitude
       * adding rotate() method to Stream wrapping rotate functions in
         obspy.signal
     - obspy.imaging:
       * obspy-scan: adding options to control start/endtime and channels, adding
         options to not plot gaps and reducing file size for plots considerably.
     - obspy.iris:
       * many services have been discontinued on the server side. Use obspy.fdsn
         instead for discontinued services.
       * still existing services now are distinguished by a major version of the
         particular service (like obspy.fdsn).
     - obspy.mseed:
       * Bugfix writing traces containing one or two samples only
       * writeMSEED emits an UserWarning while writing an empty trace
     - obspy.sac:
       * fixing SAC and SACXY reading/writing of empty traces or traces containing
         only one or two data points
       * new debug_headers flag for reading SAC files in order to extract all
         header variables (issue #390)
     - obspy.segy:
       * unpack SEGYTrace.data on-the-fly patch contributed Nathaniel Miller
       * fixing a bug related to negative values in trace header
     - obspy.seishub:
       * adding kwarg to control number of retries for failing requests
       * adding obspy.xseed as dependency (in setup.py and debian/control)
       * changing obspy.client.station.getPAZ() call syntax to use seed_id
         (args/kwargs)
       * adding local caching of requests for PAZ and coordinates to avoid
         repeated requests to server
     - obspy.sh:
       * file extension 'QBN' not added twice anymore if data_directory was set
       * fixing SH_ASC and Q reading/writing of empty traces or traces containing
         only one or two data points
     - obspy.signal:
       * module psd has been refactored to spectral_estimation
       * adding function for cross correlation pick correction
       * removing pitsa-compatibility in response function calculation
         (no complex conjugate)
       * preventing a possible duplicated overall sensitivity removal in seisSim
         when using the option seedresp
       * adding optimized C-code for classic STALTA. Runs approximately, 1000x
         faster than pure python code. It has now the same order of speed as the
         recursive STALTA
       * new CAPON method for array_analysis / array_processing
       * sonic was renamed to array_processing, sonic is now deprecated
     - obspy.xseed:
       * fixed a bug with Dataless to XSEED conversion using split_stations=True
       * fixed a bug affecting getPAZ() and getCoordinates() when selecting
         specific channels from complex dataless files
         (see: https://github.com/obspy/obspy/issues/412)
       * added getInventory() method to the Parser object. Returns a dictionary
         about the contents of the Parser object. This is also integrated in the
         string representation and makes it more informative.
       * allow parsing of oversized VariableString from SEED, but warn and cut
         string to max_length at writing SEED (#701)
     - obspy.mseed:
       * adding experimental details option, which extracts timing quality and
         info on the calibration

    0.7.1:
     - obspy.arclink:
       * proper DeprecationWarning for deprecated keywords for
         Client.getWaveform()
     - obspy.core:
       * fixing negative azimuths returned by gps2DistAzimuth [#375]

    0.7.0:
     - obspy.arclink:
       * requesting time spans (using 'starttime' and 'endtime' keywords) are
         deprecated in Client.getPAZ() and Client.getMetadata() - use 'time'
         instead
       * output format has changed for Client.getPAZ(..., time=dt)
       * 'getCoordinates' and 'getPAZ' keywords are deprecated in
         Client.getWaveform() - use 'metadata' instead
       * Client.getWaveform(..., metadata=True) will return both keywords as well
         as PAZ - inventory request is done only once per request -> huge
         performance improvement compared to previous implementation
       * traces requested via Client.getWaveform(..., metadata=True) covering
         multiple instrumentations will be split and the correct PAZ are appended
     - obspy.core:
       * new Catalog/Event classes
       * read/write support for QuakeML files
       * new resample method for Trace and Stream object
       * Trace.__mod__ (splits Trace into Stream containing traces with num
         samples)
       * Trace.__div__ (splits Trace into Stream containing num traces)
       * implementation of __mul__ method for Trace and Stream objects
       * new formatSeedLink method for UTCDateTime object
       * new split method for transforming streams containing masked arrays into
         contiguous traces
       * new util.xmlwrapper module for uniform API for Python's default xml and
         lxml
       * new obspy.core.util.types.Enum class
       * refactored obspy.core.util.ordereddict into obspy.core.util.types
       * refactored kilometer2degrees and locations2degrees from obspy.taup into
         obspy.core.util.geodetics
       * adding 'equal_scale' option to plot() method
       * removing __hash__ fixture for Stream and Trace
       * stream.select works now case insensitive
       * support for initialization of UTCDateTime from numpy.string_ types
       * new dtype parameter on read method allows converting data into given
         dtype
       * AttribDict may now be initialized with (key, value) kwarg pairs, e.g.
         AttribDict(a=1, b=2).
        * changed many setter/getter in UTCDateTime to private methods, e.g.
          _getDate
       * added UTCDateTime.DEFAULT_PRECISION
       * import of an unsupported waveform will result into a TypeError [#338]
       * added compatibility methods for AttribDict and UTCDateTime
       * retaining trace order in stream while merging
       * deprecated_keywords decorator may warn and ignore keywords by setting the
         keyword mapping to None
     - obspy.db:
       * added client for a database created by obspy.db
       * adapting to changes in obspy.core.util.base version 0.6.0 and above
     - obspy.gse2:
       * bugfix for buffer overflow in test_readDos
       * bugfix checksum calculation of GSE2/GSE1
     - obspy.imaging:
       * Trace.label/Stream.label can be used to overwrite default labels
       * better support for huge/tiny y-ticks and plots containing multiple traces
       * adding 'equal_scale' option to plot() method
       * Limited localization support and the time axis(es) can be swapped.
       * traces with same id but different processing steps will not be merged
         anymore using the plot() method
       * accept a list of two values for width of beachballs (using Ellipse patch)
     - obspy.iris:
       * added low-level interface for IRIS timeseries WS
       * added low-level interface for IRIS traveltime WS
       * new Client.getEvents method able to return a ObsPy catalog object
     - obspy.mseed:
       * changing license to LGPL (same as libmseed)
       * libmseed 2.7 (fixes sampling rates above 32,767 Hz)
       * adding read/write support for very large and very small sampling rates
         using blockette 100 in MiniSEED
       * new obspy-mseed-recordanalyzer script for analyzing SEED files via
         console
       * new obspy.mseed.util.shiftTimeOfFile() function for shifting
         the time of all records without interfering with the rest of the file.
     - obspy.neries:
       * new format 'catalog' for getEvents, getEventDetail and getLatestEvents
         methods - deprecating old format defaults
     - obspy.sac:
       * bugfix for SAC files containing null terminated strings
     - obspy.seg2:
       * bugfix in parsing starttime from seg2 header
     - obspy.signal:
       * adding toolbox to calculate Time-Frequency Misfits
       * fixed bug in calculation of time derivatives
       * fixing a misleading entry point for trigger, adding a missing one
       * adding coincidence triggering routine
     - obspy.taup:
       * deprecated kilometer2degrees and locations2degrees - one can find those
         methods on obspy.core.util now
     - obspy.xseed:
       * fixed a bug with exactly one pole or one zero in response information

    0.1.0:
     - obspy.datamark:
       * read support
     - obspy.realtime:
       * initial release

### Thank you!

We would like to thank our contributors, whose efforts make this software what it is. These people have helped by writing code and documentation, and by testing. They have created and maintained this product, its associated libraries and applications, our build tools and our web sites.

#### Contributors

- Ackerley, Nick
- Allgeyer, Sebastien
- Ammon, Charles J.
- Antunes, Emanuel
- Arnarsson, Ólafur St.
- Bank, Markus
- Barsch, Robert
- Behr, Yannik
- Bernardi, Fabrizio
- Bernauer, Felix
- Bes de Berc, Maxime
- Beyreuther, Moritz
- Boltz, Shawn
- Bonaimé, Sébastien
- Carothers, Lloyd
- Chamberlain, Calum
- Chambers, Derrick
- Chen, Zhao
- Clark, Adam
- Danecek, Peter
- Egdorf, Sven
- Engels, Fabian
- Ermert, Laura
- Eulenfeld, Tom

- Fabbri, Tommaso
- Falco, Nicholas
- Fee, Jeremy
- Grellier, Clément
- Grunberg, Marc
- Hammer, Conny
- Heimann, Sebastian
- Heiniger, Lukas
- Hope, Gaute
- Igel, Heiner
- Inza, Adolfo
- Isken, Marius
- Ketchum, David
- Koymans, Mathijs
- Kremers, Simon
- Kress, Victor
- Krieger, Lars
- Krischer, Lion
- Kula, Damian
- Käufl, Paul
- Köhler, Andreas
- Lecocq, Thomas
- Leeman, John
- Legovini, Paride

- Lesage, Philippe
- Li, Yulin
- Lomax, Anthony
- Lopes, Rui L.
- MacCarthy, Jonathan
- Maggi, Alessia
- Martin, Henri
- Medlin, Andrew
- Megies, Tobias
- Meschede, Matthias
- Michelini, Alberto
- Miller, Nathaniel C.
- Morgenstern, Bernhard
- Nof, Ran Novitsky
- Panning, Mark P.
- Parker, Tom
- Pestourie, Romain
- Rapagnani, Giovanni
- Reyes, Celso
- Ringler, Adam
- Rothenhäusler, Nicolas
- Russo, Emiliano
- Sales de Andrade, Elliott

- Satriano, Claudio
- Saul, Joachim
- Scheingraber, Chris
- Schneider, Simon
- Sippl, Christian
- Snoke, Arthur
- Stange, Stefan
- Stähler, Simon C.
- Sullivan, Benjamin
- Tian, Dongdong
- Trabant, Chad
- Trani, Luca
- Uieda, Leonardo
- Walker, Andrew
- Walther, Marcus
- Wassermann, Joachim
- Williams, Mark C.
- Winkelman, Andrew
- Zaccarelli, Riccardo
- Zad, Seyed Kasra Hosseini
- Zhu, Lijun
- van Driel, Martin
- van Wijk, Kasper

#### Funds

ObsPy was partially funded by the

- German Science Foundation (DFG) via grant DFG IG 16/9-1
- German Ministry for Education and Research (BMBF), GEOTECHNOLOGIEN grant 03G0646H.
- NERA project (Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation) under the European Community's Seventh Framework Programme (FP7/2007-2013) grant agreement n° 262330
- Leibniz Institute for Applied Geophysics (LIAG)
- VERCE EU-FP7 project (no. 283543)