v2.5.4

[2.5.4] — 2026-03-10

Fixed

• [Migrate] Resolver::migrate() is now protected against infinite
  recursion caused by circular foreign key chains (e.g. A→B→C→A). A static
  $migratingEntities registry tracks entities currently being migrated;
  re-entrant calls return false immediately and the original call completes
  normally.
• [Migrate] Resolver::migrate() now filters all destructive DDL from the
  SQL generated by DBAL4's schema comparator before executing it. DROP TABLE,
  DROP INDEX, and ALTER TABLE ... DROP COLUMN / DROP FOREIGN KEY clauses
  are stripped. migrate() is strictly additive — it never removes data.
• [Migrate] migrateCreateSchema() promotes string columns with no
  explicit length, or with a length exceeding 16 383 characters (the MySQL
  utf8mb4 VARCHAR limit), to text. DBAL4 changed the default string length
  from 255 to 65 535, which exceeds the MySQL utf8mb4 maximum and caused
  SQLSTATE[42000]: Column length too big on ALTER TABLE.