Nim/changelog_v020.md

v0.20.2 - XXXX-XX-XX

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++.)

Breaking changes in the standard library

Breaking changes in the compiler

Library additions

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