Changelog for 2.274

What's new in 2.274 (2021-01-05)

• Reduce lock contention around jenkins queue. (issue 58101)
• Prevent user input of 'e' or 'E' as 'positive-number', 'non-negative-number', or 'number'. (issue 64439)
• Update jnr-posix library from 3.0.45 to 3.1.4. (pull 5129, Commits from jnr-posix 3.0.45 to 3.1.4)
• Update Java native access (jna) library from 5.3.1 to 5.6.0 for most recent platform library fixes and enhancements. (pull 5125, JNA 5.6.0 changelog, JNA 5.5.0 changelog, JNA 5.4.0 changelog)