Issue #2827897 by quietone, danflanagan8, mikelutz, smustgrave, mikeryan, osopolar, xurizaemon, benjifisher: Update documentation for handling dots in the static_map plugin

Issue #3221516 by quietone, himanshu_jhaloya, smustgrave, Lendude, joachim: Improve documentation for $old_destination_id_values in MigrateDestinationInterface

Issue #3427564 by phenaproxima, Wim Leers, alexpott, omkar.podey, Berdir, smustgrave, larowlan: Require `langcode: …` only for simple config that contains translatable values

Issue #3426506 by kim.pepper, smustgrave, mstrelan, alexpott: Create enums for File exists options and deprecate consts

Issue #3421016 by quietone, godotislate: Convert MigrateProcessPlugin plugin discovery to attributes

Issue #3424509 by godotislate, quietone, sorlov, smustgrave, alexpott, benjifisher: Update MigratePluginManager to include both attribute and annotation class

Revert "Issue #3424509 by godotislate, quietone, sorlov, smustgrave, benjifisher, alexpott: Update MigratePluginManager to include both attribute and annotation class"

This reverts commit c9d53fd4.

Issue #3424509 by godotislate, quietone, sorlov, smustgrave, benjifisher, alexpott: Update MigratePluginManager to include both attribute and annotation class

Issue #3425337 by mondrake: Fix root namespace classes DebugClassLoader forward compatibility warnings

Revert "Issue #3425337 by mondrake: Fix root namespace classes DebugClassLoader forward compatibility warnings"

This reverts commit ea9cc753.

Issue #3425337 by mondrake: Fix root namespace classes DebugClassLoader forward compatibility warnings

Revert "Issue #3425337 by mondrake: Fix root namespace classes DebugClassLoader forward compatibility warnings"

This reverts commit ff7c5de3.

Issue #3425337 by mondrake: Fix root namespace classes DebugClassLoader forward compatibility warnings

Issue #3197915 by quietone, joachim, Tanuj., karishmaamin, dww:  Add details to MigrateSkipRowException messages caused by stub creation

Issue #3422543 by mstrelan, smustgrave, longwave: Make use of is_iterable and is_countable functions

Issue #3365895 by danflanagan8, benjifisher, mikelutz: When sub_process encounters a row skip, it should skip its internal row, and not bubble up to the outer row

Issue #3247040 by _shY, quietone, smustgrave, joachim: MigrateSkipRowException should document that it is for use within migration process plugins

Issue #3245997 by mikelutz, martin_klima, quietone, danflanagan8, joachim, smustgrave, longwave: Allow process plugins to stop further processing on a pipeline

Issue #3328457 by xjm, dimitriskr: Replace most substr($a, $i) where $i is negative with str_ends_with()

Issue #3328456 by xjm, dimitriskr, murilohp, smustgrave: Replace substr($a, 0, $i) with str_starts_with()

Issue #3063856 by quietone, alexpott, rpayanm, benjifisher, fredysan, Wim Leers, Ratan Priya, bsnodgrass, heddn: Add ability to view migrate_message table data

Issue #3364109 by Wim Leers, effulgentsia, lauriii, phenaproxima, borisson_, bircher, alexpott: Configuration schema & required values: add test coverage for `nullable: true` validation support

Issue #3390693 by mikelutz, smustgrave: MigrationPluginManager::ExpandPluginIds can lose derivative plugins under certain circumstances

Issue #3389202 by mondrake, andypost, daffie: migrate\Plugin\migrate\id_map\Sql assumes a PDO db driver

Issue #3389323 by benjifisher, smustgrave, xjm: Incomplete examples in API docs for the download process plugin

Issue #3048495 by jonathan1055, quietone, rajandro, Spokje, Pooja Ganjage, andypost, kishor_kolekar, msuthars, munish.kumar, ankithashetty, ayushmishra206, ravi.shankar, naveenvalecha, longwave, Gábor Hojtsy, alexpott, smustgrave, Lendude, xjm, adityasingh, daffie: Fix Drupal.Semantics.FunctionTriggerError coding standard