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# v1.1 - XXXX-XX-XX
## Changes affecting backwards compatibility
- The switch ``-d:nimBinaryStdFiles`` does not exist anymore. Instead
stdin/stdout/stderr are binary files again. This change only affects
Windows.
- On Windows console applications the code-page is set at program startup
to UTF-8. Use the new switch `-d:nimDontSetUtf8CodePage` to disable this
feature.
- The language definition and compiler are now stricter about ``gensym``'ed
symbols in hygienic templates. See the section in the
[manual](https://nim-lang.org/docs/manual.html#templates-hygiene-in-templates)
for further details. Use the compiler switch `--useVersion:0.19` for a
transition period.
### Breaking changes in the standard library
- We removed `unicode.Rune16` without any deprecation period as the name
was wrong (see the [RFC](https://github.com/nim-lang/RFCs/issues/151) for details)
and we didn't find any usages of it in the wild. If you still need it, add this
piece of code to your project:
```nim
type
Rune16* = distinct int16
```
### Breaking changes in the compiler
## Library additions
- `encodings.getCurrentEncoding` now distinguishes between the console's
encoding and the OS's encoding. This distinction is only meaningful on
Windows.
- Added `system.getOsFileHandle` which is usually more useful
than `system.getFileHandle`. This distinction is only meaningful on
Windows.
## Library changes
- Added `os.delEnv` and `nimscript.delEnv`. (#11466)
- Enable Oid usage in hashtables. (#11472)
- Added `unsafeColumnAt` procs, that return unsafe cstring from InstantRow. (#11647)
- Make public `Sha1Digest` and `Sha1State` types and `newSha1State`,
`update` and `finalize` procedures from `sha1` module. (#11694)
- Added the `std/monotimes` module which implements monotonic timestamps.
- Consistent error handling of two `exec` overloads. (#10967)
## Language additions
## Language changes
### Tool changes
- The Nim compiler now does not recompile the Nim project via ``nim c -r`` if
no dependent Nim file changed. This feature can be overridden by
the ``--forceBuild`` command line option.
- The Nim compiler now warns about unused module imports. You can use a
top level ``{.used.}`` pragma in the module that you want to be importable
without producing this warning.
### Compiler changes
- VM can now cast integer type arbitrarily. (#11459)
## Bugfixes
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