8000 Versioning and compatibility guarantees for .nl spec · Issue #144 · Mnehmos/mnehmos.nls.lang · GitHub
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Versioning and compatibility guarantees for .nl spec #144

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#223
Closed
Versioning and compatibility guarantees for .nl spec#144
#223
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ecosystemPackage and distribution systempriority-mediumShould be addressedspecificationLanguage specification documents
Milestone
v0.5

Description

@Mnehmos
Mnehmos
opened on Mar 17, 2026

Problem

There are no defined compatibility guarantees between NLS versions. Users cannot know if upgrading the toolchain will break their .nl files.

Acceptance Criteria

  • Defined semver policy: what constitutes a breaking change to the language spec
  • @nls_version directive or equivalent in .nl files
  • Compiler warns or errors on version mismatches
  • CHANGELOG tracks spec-level changes separately from toolchain changes

Why This Blocks v0.5

A language without version semantics can't be adopted for real projects.

Activity

  1. Mnehmos
    added this to the v0.5 milestone on Mar 17, 2026
  2. Mnehmos
    added
    specificationLanguage specification documents
    ecosystemPackage and distribution system
    priority-mediumShould be addressed
    on Mar 17, 2026
  3. Mnehmos
    closed this as completedin #223on Sep 10, 2026
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