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+# v0.20.2 - 2019-07-17
+
+
+## Changes affecting backwards compatibility
+
+- All `strutils.rfind` procs now take `start` and `last` like `strutils.find`
+  with the same data slice/index meaning. This is backwards compatible for
+  calls *not* changing the `rfind` `start` parameter from its default. (#11487)
+
+  In the unlikely case that you were using `rfind X, start=N`, or `rfind X, N`,
+  then you need to change that to `rfind X, last=N` or `rfind X, 0, N`. (This
+  should minimize gotchas porting code from other languages like Python or C++.)
+
+- On Windows stderr/stdout/stdin are not opened as binary files anymore. Use the switch
+  `-d:nimBinaryStdFiles` for a transition period.
+
+### Breaking changes in the standard library
+
+- Mac OS X / BSD: TSa_Family is now the ``uint8`` type, so type
+  conversions like ``x.sin_family = uint16 toInt(nativesockets.AF_INET)``
+  need to be changed into ``x.sin_family = TSa_Family toInt(nativesockets.AF_INET)``.
+
+
+### Breaking changes in the compiler
+
+
+## Library additions
+
+- `toOpenArray` is now available for the JS target.
+
+## Library changes
+
+- Fix async IO operations stalling even after socket is closed. (#11232)
+
+- More informative error message for `streams.openFileStream`. (#11438)
+
+
+## Language additions
+
+
+## Language changes
+
+
+### Tool changes
+
+
+### Compiler changes
+
+- Better error message for IndexError for empty containers. (#11476)
+
+- Fix regression in semfold for old right shift. (#11477)
+
+- Fix for passing tuples as static params to macros. (#11423)
+
+## Bugfixes