what_changed
Core API diff between versions
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Answer "what changed in the core API between two core versions": symbols added, deprecated and removed, as ranked groups with counts. One symbol: lookup_core_symbol. Human write-ups: list_change_records. Every row of one bucket: flat=true with bucket, paged. Every row of the whole diff: the result's bulk block, with attach and sql for the published catalog. Write those rows to a file, so they stay out of the context window.
- Bounds are inclusive. Forms: 11.2, 11.2.x, 11.2.0, 11, 11.x. The same version twice is one minor. Upgrading 11.2 → 11.4 means from=11.3. Buckets are independent.
- Grouped (default): a head entry is a symbol group; grouped_by is change_record, name_prefix or singleton. head: groups, up to 5. count: symbols. group_count: groups. members: up to 3 per group, highest usage first. Group fields appear only when every member agrees. Rank: max_projects_using desc, then member_count magnitude, tier, count, key; ranked_by states it. When head_covers_all_callers is false, narrow with kind or min_projects_using, or page with offset.
- Flat (flat=true, bucket=added, deprecated, removed): rows by projects_using then fqn. Each row: fqn, kind, subsystem, stamp, projects_using, removal_in, removal_kind, replacement when the catalog lists one, change_record_nids. count: public symbols in the bucket after filters. limit ≤ 100. next_offset is absent on the last page.
- Filters apply to every count. internal_excluded and test_theme_excluded are counted apart and left out. unplaceable_symbols have no minor in their stamp.
- Usage: contrib development branches only, from the evidence rollup as of usage_evidence_built_at. 0 means no caller observed.
- change_record_nids: for get_change_record. removal_kind observed: gone. removal_kind scheduled: promised and still present; say "scheduled for removal in 13.0".
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| from | string | yes | Lower core version bound, inclusive: 11.2, 11.2.x, 11.2.0, 11, 11.x. Upgrading from 11.2 means from=11.3. |
| to | string | yes | Upper bound, inclusive, same forms. |
| head | integer | no | Groups per bucket, 1 to 5 (default 5). Ignored when flat is true. |
| kind | string | no | Restrict to one symbol kind (method, class, function, hook, service, library …). Applies to counts too. |
| min_projects_using | integer | no | Drop symbols fewer than this many contrib projects call on a development branch. Applies to counts too. |
| offset | integer | no | Skip this many groups per bucket (grouped) or rows (flat), in ranked order. Flat: pass the previous page's next_offset. |
| flat | boolean | no | true: one bucket as flat symbol rows, paged, instead of three buckets of ranked groups. Needs bucket. |
| bucket | string | no | With flat: which side of the diff to list, added, deprecated, or removed. One bucket per call. |
| limit | integer | no | With flat: rows per page, 1 to 100 (default 50). A page of very long fqns may come back shorter. next_offset always says where the next page starts. |
Raw JSON schema
{
"type": "object",
"properties": {
"from": {
"type": "string",
"description": "Lower core version bound, inclusive: 11.2, 11.2.x, 11.2.0, 11, 11.x. Upgrading from 11.2 means from=11.3."
},
"to": {
"type": "string",
"description": "Upper bound, inclusive, same forms."
},
"head": {
"type": "integer",
"description": "Groups per bucket, 1 to 5 (default 5). Ignored when flat is true."
},
"kind": {
"type": "string",
"description": "Restrict to one symbol kind (method, class, function, hook, service, library …). Applies to counts too."
},
"min_projects_using": {
"type": "integer",
"description": "Drop symbols fewer than this many contrib projects call on a development branch. Applies to counts too."
},
"offset": {
"type": "integer",
"description": "Skip this many groups per bucket (grouped) or rows (flat), in ranked order. Flat: pass the previous page's next_offset."
},
"flat": {
"type": "boolean",
"description": "true: one bucket as flat symbol rows, paged, instead of three buckets of ranked groups. Needs bucket."
},
"bucket": {
"type": "string",
"description": "With flat: which side of the diff to list, added, deprecated, or removed. One bucket per call."
},
"limit": {
"type": "integer",
"description": "With flat: rows per page, 1 to 100 (default 50). A page of very long fqns may come back shorter. next_offset always says where the next page starts."
}
},
"required": [
"from",
"to"
],
"additionalProperties": false
}