Log Message:
Update to 0.20.2

Changelog:
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).

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)

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

    Fixed "nimpretty goes crazy with this snippet" (#10295)
    Fixed "nimpretty doesn't trim all whitespace on the right side of an \ 
export marker" (#10177)
    Fixed "nimpretty gives invalid indentation to array elements" (#9505)
    Fixed "nimpretty doesn't indent correctly if preceding line ends with \ 
;, { etc" (#10159)
    Fixed "Nimpretty wrong indentation for doc comments" (#10156)
    Fixed "HttpClient Documentation needs Proxy example" (#11281)
    Fixed "nimpretty aligns comment annoyingly" (#9399)
    Fixed "ENDB missing from Docs and TheIndex, remove ENDB from \ 
-fullhelp" (#11431)
    Fixed "Nimrod on Documentation generator" (#11460)
    Fixed "nimpretty (de)indents code where it shouldn't" (#11468)
    Fixed "nimpretty adds spaces where it shouldn't" (#11470)
    Fixed "nimpretty formats enums differently based on commas" (#11467)
    Fixed "strutils.rfind start parameter is unecessarily unusual" (#11430)
    Fixed "TinyC is not documented" (#11495)
    Fixed "c2nim missing from 0.20.0" (#11434)
    Fixed "nimsuggest doesn't work unless compiled with -d:danger" (#11482)
    Fixed "random.initRand crashes in Nim 0.20.0 JS backend" (#11450)
    Fixed "0.20.0 fails to bootstrap when passing "-verbosity:2" \ 
(or 3) to koch" (#11436)
    Fixed "Destructors lifting doesn't work with inheritance" (#11517)
    Fixed "std/sums missing from TheIndex" (#11543)
    Fixed "sequtils module: link is broken" (#11546)
    Fixed "Case Statement Macros do not work in functions above exported \ 
functions." (#11556)
    Fixed "newruntime: internal error when initializing a proc \ 
variable" (#11533)
    Fixed "newruntime: error when modifying a sequence" (#11524)
    Fixed "fmod and other math module functions are missing in js \ 
mode" (#4630)
    Fixed "Object variants and new runtime" (#11563)
    Fixed "newruntime exceptions" (#11577)
    Fixed "nimpretty is not aware that the next line is a part of the same \ 
context" (#11469)
    Fixed "Distinct procs fail to compile" (#11600)
    Fixed "[SharedTables] Error: undeclared identifier: \ 
'defaultInitialSize'" (#11588)
    Fixed "newSeqOfCap is not working in newruntime" (#11098)
    Fixed "nimpretty destroys source with a source code filter" (#11532)
    Fixed "Unexpected behaviour when constructing with result" (#11525)
    Fixed "Regression in 0.20.0: Nested proc using outer scope variable \ 
fails to compile" (#11523)
    Fixed "os:standalone Error: redefinition of 'nimToCStringConv' " \ 
(#11445)
    Fixed "No ambiguity error on field overloaded by field=" (#11514)
    Fixed "object variants and new runtime part 2" (#11611)
    Fixed "seq Error: unhandled exception: value out of range: 32772 " \ 
(#11606)
    Fixed "Compiled binary includes full path to internal nim files" \ 
(#11572)
    Fixed "Newruntime: top-level string variable is empty after an array \ 
assignment" (#11614)
    Fixed "Newruntime: raise ObjContructor() doesn't compile" (#11628)
    Fixed "Owned ref can be copied and causes double-free" (#11617)
    Fixed "When compiling to JS (in -d:release) output contains toolchain \ 
path on dev's machine" (#11545)
    Fixed "wrong unicode string output" (#11618)
    Fixed "unittest "generic instantiation too nested" \ 
error" (#11515)
    Fixed "Last read of a var parameter generates sink instead of \ 
assignment" (#11633)
    Fixed "const table with proc type does not compile anymore" (#11479)
    Fixed "Can't use offsetOf on object that ends with an \ 
UncheckedArray" (#11320)
    Fixed "Newruntime/regression: Bad codegen for inline methods" (#11636)
    Fixed "String or sequences inside a loop are not cleared in each \ 
iteration" (#11510)
    Fixed "Nim -v doesn't acknowledge new danger flag" (#11484)
    Fixed "SIGSEGV while compiling when trying to instantiate a case type, \ 
that uses an enum with nsage of parts of strutils fails when using \ 
-d:useNimRtl" (#8405)
    Fixed "regression(0.20): finally block executed twice in VM" (#11610)
    Fixed "exportc symbol not exported, leading to link error" (#11651)
    Fixed "Render bug: opearatorasses refs across threads" (#7057)
    Fixed "BUG: "varargs[string, $]" calls $ n^2 times instead of \ 
n times (n=len(varargs))" (#8316)
    Fixed "Problem with the same name for module and exported type" (#3333)
    Fixed "-gc:go does notles/objects fail with "non-trivial" \ 
error..." (#11671)
    Fixed "Regression: parameter default value + typedesc parameter causes \ 
compiler crash" (#11660)
    Fixed "newruntime: undetected dangling ref" (#11350)
    Fixed "Newruntime: setLen() not working on sequences of owned \ 
refs" (#11530)
    Fixed "Incorrect overflow/underflow error in case statements" (#11551)
    Fixed "cgen preprocessor directive placed after struct \ 
declaration" (#11691)
    Fixed "continue in an except Exception as e block crashes the \ 
compiler." (#11683)
    Fixed "nimsuggest, nim check segfault when using bindSym and \ 
doAssert" (#10901)
    Fixed "Nimpretty issue, multiline string of x length only causes output \ 
grow every time." (#11700)
    Fixed "Array indexed by distinct int doesnt work with iterators" \ 
(#11715)