8.21.0

What's Changed

New Features ✨

• Adding a utility to provide test data for specific unicode handling issues. by @ldhardy in #1044
• Add RegularExpressionTestUtil for testing regexes by @ldhardy in #1041

Improvements 🛠

• Added cleaner Executrix temp file names API, deprecated array-based API by @drivenflywheel in #1037
• fallback to original behavior for getParameterAsString by @dev-mlb in #1047
• change EmissaryServer to use an enum for mode by @jpdahlke in #1042

Documentation 📚

• getStringParameter deprecation should suggest getParameterAsString by @drivenflywheel in #1045

Build, Package, Deploy 📦

• errorprone :: fail build on warnings/errors by @dev-mlb in #1048

Other Changes ⚙️

• adding @nullable to BaseDataObject tld to remove warning by @sambish5 in #1046
• deprecate SUFFIXES_HTML_ESCAPE constant parameter by @sambish5 in #1049

Full Changelog: 8.20.0...8.21.0