Issues

make install fails to install data files when using --with-data-packaging=files

Fix typo in comment (arguements→arguments)

Locale canonicalization may need to merge extensions under languageAlias replacement

Increase the timeout for the Exhaustive Test CI builds

Improve memory management in the locale code

Improve precision handling in Mixed Unit formatting code

Enable asserts for "ant checkTest"

Compilation error in listformatter.cpp when UCONFIG_NO_FORMATTING is set

Add more unit identifier test cases

ICU4J calendar arithmetic fixes that match ICU4C fixes in https://github.com/unicode-org/icu/pull/1304

Inconsistencies date field notation

Consider retaining trailing zeros on toDecimalNumber functions

UTF8->UTF8 conversion wrong "count" calculation

decompose (NFD/NFKD) UTF-8 with Edits

Add build bot for ICU4C on Ubuntu 20.04

Update kramdown version in Gemfile.lock (User Guide)

reduce CleanOutputDirectoryTask.java to only look for WAS_GENERATED_LABEL

Remove obsolete getFirstDecimal and getSecondDecimal

Using accounting sign and compact notation fails for numbers <-999.

Debug build for arm64 fails upon cross-building using debug build of x64

ICU4C: Fix valgrind failure in dtptngen.cpp

test failure with "fr" plural rules case "many": computeLimited == isLimited

Layoutex - paragraphlayout.cpp build error

BRS 68: Two intltest unit tests throw segmentation faults when executed without data