Release v3.1.0

[Zordrak]

Release v3.1.0

Prepares the release of tfenv v3.1.0 — the first release since v3.0.0 (July 2022).

Changes

• Updated CHANGELOG.md with comprehensive v3.1.0 entry covering all changes since v3.0.0
• Updated Dockerfile version from 3.0.0 to 3.1.0

What is in v3.1.0

6 New Features:

• latest-allowed version resolution from required_version constraints (=, >=, >, <=, ~>)
• TFENV_SKIP_REMOTE_CHECK environment variable
• Per-version file locking for concurrent install safety
• Conditional bashlog loading via TFENV_BASHLOG
• Custom remote compatibility (Artifactory, etc.)
• Dockerfile for containerised usage

25+ Bug Fixes:

• Pre-release filtering for latest, shell quoting fixes, cross-platform compatibility, operator precedence bugs, documentation corrections, and more

Test Coverage Overhaul:

• 7 new test suites (13 total), infrastructure improvements, proper exit codes

Post-merge

After this PR is merged, the release process is:

1. Create annotated tag: git tag -a v3.1.0 -m 'tfenv v3.1.0'
2. Push tag: git push origin v3.1.0
3. Create GitHub release from the tag

Tagging will wait for explicit instruction from the maintainer.