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CHANGELOG.md
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# Changelog
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## Changes in release 2.8.20
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Fix missing initialization of `inTerminator` and `outTerminator`.
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Thanks to Krisztián Löki.
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New checksums `%<lrc>` and `%<hexlrc>`.
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Thanks to Marcio Paduan Donadio.
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Make timestamp output in error and debug messages optional with new
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iocsh variable `streamMsgTimeStamped`. Default is 1.
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Reduce number of duplicate error messages. Dead time for repeated messages
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is configurable with new iocsh variable `streamErrorDeadTime`.
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Thanks to Dominic Oram.
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Shifted some noisy debug messages to `streamDebug` level 2.
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In `STREAM_PROTOCOL_PATH`, allow both `:` and `;` separators on all
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operating systems to make startup scripts OS independent.
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On Windows however, an initial single letter followed by a `:` is detected
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as a drive letter. Thus single letter directories must be separated with
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`;` or followed by `\` or `/` on Windows.
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Allow absolute path protocol files. Those will not use
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`STREAM_PROTOCOL_PATH`.
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Changed the default search path from `"."` to `NULL`.
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Only poll for `I/O Intr` records while `interruptAccept` is true,
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in particular not between `iocPause` and `iocRun`.
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Added this change log and a document about contributing to StreamDevice.
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## Changes in release 2.8.19
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Make colorization of error and debug messages optional with new
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iocsh variable `streamDebugColored`. Defaults to 1 when output is a tty
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and 0 otherwise.
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## Changes in release 2.8.18
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Another format string fix for VxWorks in checksum converter.
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## Changes in release 2.8.17
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Fix format strings for VxWorks 6.9 in checksum converter.
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Fix some compiler warnings on Windows.
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Fix some missing header files installations.
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## Changes in release 2.8.16
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Drop support of upper level `configure/` directory for improved
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compatibility with SynApps.
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Fix problem with extra spaces after protocol name in record links.
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Make version string generation more robust.
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## Changes in release 2.8.15
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Do not overwrite `HOST_OPT` flag.
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Fix version string generation for zip downloads.
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On Windows use `;` and `\` in `STREAM_PROTOCOL_PATH`.
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(Was not the case before due to typo in macro name.)
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Link streamApp with `seq` and `pv` libraries when `SNCSEQ` is defined in
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RELEASE file.
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## Changes in release 2.8.14
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Fix version string generation from git tags.
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## Changes in release 2.8.13
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Fix bug with integer datatype handling in redirectons.
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## Changes in release 2.8.12
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Apply GPL-3.0.
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## Changes in release 2.8.11
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Fix buffer overrun.
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Thanks to Garth Brown and Bruce Hill.
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Fix bug in 64 bit data type handling in array records (`aai`, `aao`,
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`waveform`).
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Thanks to Andrew Johnson.
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Fix Windows linker problem.
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Thanks to Freddie Akeroyd.
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Allow `(,)` inside protocol parameters. Limitation: Parenthesis must be in
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matching pairs. Commas within inner parenthesis are consideres part of the
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argument. Example: `protocol(arg1, (arg2, still arg 2), arg3)`.
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New checksums `%<brksCryo>`, `%<xor8ff>`, `%<nsum8>`, `%<nsum16>`,
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`%<nsum32>`, `%<notsum>`.
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Thanks to Mark Davis.
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Some error message cleanup.
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## Changes in release 2.8.10
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Fixes for Windows / Visual Studio 2010.
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Thanks to Freddie Akeroyd.
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Fix infinite loop in `I/O Intr` scanned records.
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Enable error messages by default and always show error messages too when
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debug messages are enabled.
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Make sure any console output from StreamDevice can be redirected.
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Fix some problems when building for old EPICS R3.13.
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## Changes in release 2.8.9
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Leave `asynTraceMask` alone. Before, streamDevice had set `setTraceMask`
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to 0 initially.
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Link with `sscan` module if `SSCAN` is defined in RELEASE file because the
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`calc` module may need it.
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Fix in regsub converter: Avoid infinite loop if an empty string is matched.
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Add support for toupper/tolower to regsub converter.
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Fix build problem observed on MacOS related to clash between `wait()`
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system function and the StreamDevice `wait` command.
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Allow `%%` in addition to `\%` to escape `%` in protocols (compatibility
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with `printf`/`scanf`).
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Have separate dbd file for applications without scalcout support built in.
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Improved compatibility with SynApps. (fix of the attempt in 2.8.6)
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## Changes in release 2.8.8
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Fix problem with `in` command hanging forever if it is the the first
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command of the protocol and the device is offline.
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## Changes in release 2.8.7
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Enable colored error/debug output on Windows.
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Changed error/debug hex output highlight from fat to inverse.
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Fix build problem on Windows.
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## Changes in release 2.8.6
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Improved compatibility with SynApps.
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Fix redirection to records with names not starting with a letter or
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underscore.
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### Fixes/improvements for `mbbo` device support:
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Use `.MASK` and `.SHFT` fields even if no `xxVL` field is defined
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(and thus `.VAL` is used instead of `.RVAL`).
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Bugfix: Set `mbbo` to unknown state `0xffff` if in readback no state
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matches.
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Bugfix: Use defined state alarms when `mbbo` is updated by `@init` handler.
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## Changes in release 2.8.5
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A `"\?"` at the end of an input format now matches an empty string.
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Used to do so unintendedly in earlier versions but had been changed.
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## Changes in release 2.8.4
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Bugfix: After `@init` had been triggered with "magic value" 2 in `.PROC`
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field, reset the field to 0.
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## Changes in release 2.8.3
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Increase limits on filename, protocolname, busname in record links.
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Bugfix: Fix typo calcout device support that prevented compiling it.
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## Changes in release 2.8.2
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Bugfix: Fix string termination reading into char array records (`waveform`,
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`aai`, `aao`, `lsi`, `lso`).
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## Changes in release 2.8.1
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Allow empty parameter list `()` in record links.
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## Changes between 2.7 and 2.8.0
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### Build system
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Drop support for (buggy) cygnus-2.7.2 gcc (as used in some old cygwin
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version).
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Add standard EPICS App build system (`configure/`).
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Some re-ordering of directories.
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When upgrading from 2.7 or earlier to 2.8, better start with a fresh
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source directory to avoid problems with files that have moved.
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### New Features
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Support for 64 bit integers. This affects some conversions (e.g. in `ai`
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and `ao` records).
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Device support for new record types `int64in`, `int64out`, `lsi` and `lso`
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added.
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Support for new `INT64` and `UINT64` types in `aai`, `aao` and `waveform`
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records.
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Allow spaces in protocol parameter list in record link.
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One space after the opening `(`, before and after the separating `,` and
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before the closing `)` ignored. More spaces are part of the parameter.
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String format `%s` can now pad with 0-bytes instead of spaces using the
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`0` flag.
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New checksums `%<cpi>` and `%<leybold>`.
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Properly distinguish beween signed and unsigned integers, e.g. when
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converting to double.
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Allow signed enums to do this: `%#{backwards=-1|stop=0|forwards=1}`.
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#### New connection handling
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Run `@init` handler each time the device (re-)connects
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(as long as asynDriver detects connection changes), also at each `iocRun`
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(after being paused with `iocPause`), and after each `streamReload`.
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Also run `@init` of a record when the "magic value" 2 is written to the
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`.PROC` field or when new `streamReinitRecord` shell function is called.
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Trigger monitors when `@init` updates output records (after the intial run
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in `iocInit`).
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Use `"COMM"` error code in `.STAT` when device is disconnected.
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If write fails because device has disconnected, try to re-connect and re-do
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write once.
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### Bug fixes
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Fix parser bug when command reference was followed by `}` without `;`.
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Fix potential buffer overrun during `streamReload`.
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After `streamReload`, properly delete handlers and variables that do not
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exist any longer.
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Fix for waveforms of unsigned integers.
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Several Windows related fixes and support building shared libraries on
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Windows.
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Fix C++11 warnings.
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Check formatting of `exec` command for errors.
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Fix bug in `dbior` output.
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Fix BCD `%D` format and allow negative values.
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Fix signed hex and octal formats.
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Fix in regsub: Do not run regsub again on substituted string.
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### Shell functions
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New functions `streamReportRecord` and `streamSetLogfile`.
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Support output redirection to file of stream shell functions
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and protocol dump via `dbior`.
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### Error and debug output
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Cleanup some debug and error messages.
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Hex bytes in debug/error output are now highlighted.
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`StreamError` can now be set before `iocInit`.
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Avoid repeating error messages.
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Thanks to Ben Franksen.
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### Documentation
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HTML files converted to HTML 5.
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Update and improve several chapters.
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## Changes in releases up to 2.7.14
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Not available. See git log.
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