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IPA-2 IPA Numbering

The IPA system provides a mechanism to index and has a single source of truth for Improvement Proposals for APIs.

All IPAs have an associated number to make them easier to reference, and editors are expected to assign a number to their proposals.

State

Adopt

Assigning IPA Numbers​

While IPA numbering is arbitrary, authors can choose to suggest assigning related IPAs to a
specific block of numbers for better organization and reference.

IPA Blocks​

Currently, recognized blocks of IPA numbers are:

  • 1-99: Reserved for meta-IPAs
  • 100-899: General API design guidance
  • 900-999: SDK and client integrations guidance

API producers may request dedicated blocks for domain-specific IPAs