Version 1.6 (2024-04-25)

Nickel 1.6 is a maintenance release including several bug fixes and improvements, in particular around the features introduced in Nickel 1.5 (enum variants and background evaluation in the LSP).

Core language

• Extend merge to enum variants by @yannham in #1862
• [Fix] Allow multiple underscore to start identifiers by @yannham in #1884

Stdlib

• Add std.string.find_all by @fuzzypixelz in #1870
• Add empty optional fields-aware record operator variants by @yannham in #1876

Documentation

• modular-configurations.md: to_lower -> lowercase by @Jasha10 in #1857
• manual/modular-configurations.md: add argument to std.string.join by @Jasha10 in #1859
• manual/syntax.md: minor typo by @Jasha10 in #1860

LSP

• Improve diagnostic location in nls by @jneem in #1856
• Propagate pending array contracts in permissive_eval by @jneem in #1854
• Don't leak memory in background eval by @jneem in #1869
• Add a recursion limit to background evaluation by @jneem in #1878
• Dedup diagnostics by @jneem in #1883
• Extend the symbol range to include the rhs by @jneem in #1887
• Leverage function contract information by @yannham in #1888
• Fix LSP not showing type signature in untyped code by @yannham in #1889

Tooling

• Markdown documentation generation: do not insert line breaks by @yannham in #1879
• [Fix] Nickel doc: fix missing newline in markdown output by @yannham in #1880
• Fix infinite recursion in doc symbols. by @jneem in #1881

Fixes

• [Fix] Polymorphic field typechecking by @yannham in #1872
• Force enum payloads by @jneem in #1890

New Contributors

• @Jasha10 made their first contribution in #1857

Full Changelog: 1.5.0...1.6.0