YINI Config Format Specification RC 6 released - clearer strings, stricter parsing, and growing tooling ecosystem

YINI Specification RC 6 is now released The YINI configuration format has reached Specification Release Candidate 6 . YINI is a configuration format designed to feel familiar if you like INI-style files, but designed to bring more explicit structure, clarity, useful data types, and predictable parsing rules to real-world configuration needs.. The short version: @yini ^ App name = "Example" version = "1.0.0" debug = false ^^ Server host = "127.0.0.1" port = 8080 ^^ Features enabled = [ "auth", "logging", "metrics", ] YINI tries to sit somewhere between classic INI, JSON, TOML, and YAML: More structured than traditional INI. Less punctuation-heavy than JSON. Indentation-insensitive unlike YAML. Explicit about parsing rules and validation behavior. RC 6 is an important release because it tightens several parts of the language and moves the format closer to a stable 1.0 specification. What changed in RC 6? RC 6 includes a number of syntax and behavior updates. The main theme is the same as before: Make the format clear for humans, but deterministic for parsers. Here are some of the notable updates. Clearer section markers YINI uses section markers to define structure. ^ App name = "MyApp" ^^ Server host = "localhost" ^^^ TLS enabled = true The number of section markers defines the nesting level. This keeps hierarchy visible without relying on indentation. The primary section marker is: ^ YINI also supports alternative section markers, but ^ remains the recommended default for most files and examples. Strict and lenient mode behavior is more clearly defined YINI has two parsing modes: Lenient mode — practical, forgiving, and intended as the default. Strict mode — validation-focused and intended for stricter tooling, CI checks, and production-sensitive configuration. A file can declare its intended mode: @yini strict or: @yini lenient RC 6 clarifies how these declarations should behave when the file is parsed in a different mode. The goal is to avoid silent surprises. If