3.12.0

New features:

• upgrade relx 3.33.0, which contains a lot of useful fixes regarding booting of epmd, arbitrary overlay variables now being supported from rebar3, fixes around templates, paths on Windows, and other path handling issues.
• support REBAR_BASE_DIR env variable to optionally choose another target than _build. This value was already settable from a rebar.config file, but not from the environment. This can prove useful for Docker images, for example.
• Support rebar config dir env var, allowing to use REBAR_GLOBAL_CONFIG_DIR to change the global directory used by rebar3 for a specific run only
• Warn when there's mismatch between rebar.lock & original package checksum. The feature was already safe, but would not communicate the failure clearly.

And still a lot of fixes:

• format error from provider init and print as warning, which fixes issues with some plugins, particularly rebar_mix, used for elixir dependencies
• Fixing duplicate macro definition in umbrella edoc. This used to cause crashes in specific project structures.
• Ensure EDoc opts in umbrella apps are respected
• Repair edoc functionality on rebar3 itself
• Update vendored in hex_core to version 0.5.1
• de-duplicate dependency list in rebar_compiler_erl.erl, which could be costly for third-party languages when it came to module-level dependency analysis
• Fix reloading logger_level in the shell or tests with custom sys.config files
• rebar3 dialyzer: Warn when debug_info is disabled
• keep resources in new state used in plugins upgrade
• Fix crash when a dependency is missing app.src file
• Fix custom compiler mods typespecs, add edoc
• Bump cth_readable to fix lager support on OTP-21+
• Make missing file report more comprehensive during compilation errors
• Gracious loading of unloaded but blacklisted mods in rebar3 shell.
• Only lint app files when compiling, to prevent too frequent warnings