This release:

• migrates the project from zendframework/zend-code to laminas/laminas-code
• integrates with webimpress/safe-writer to better handle atomic proxy file write operations, effectively deferring any race conditions to a third-party package designed just for that.
• improves type declarations by marking some of ProxyManager's safe internals as @psalm-immutable, integrates the new
• uses stricter tested dependency sets, reducing the range of possible bugs coming from too wide dependency permutations

Total issues resolved: 40

• 492: Lock onto PHP 7.4.x (not 7.5.x or newer) thanks to @Ocramius
• 493: Update phpunit/phpunit requirement from ^8.3.3 to ^8.3.4 thanks to @dependabot-preview[bot]
• 494: Update zendframework/zend-code requirement from ^3.3.1 to ^3.3.2 thanks to @dependabot-preview[bot]
• 496: Update nikic/php-parser requirement from ^4.2.2 to ^4.2.3 thanks to @dependabot-preview[bot]
• 497: Update symfony/console requirement from ^4.3.3 to ^4.3.4 thanks to @dependabot-preview[bot]
• 500: Update vimeo/psalm requirement from 3.4.11 to 3.5.1 thanks to @dependabot-preview[bot]
• 501: #492 allow installation only on PHP 7.4.* (NOT 8.x!) thanks to @Ocramius
• 502: Documented basic immutable/mutation-free interfaces and services in the package thanks to @Ocramius
• 505: Update phpbench/phpbench requirement from ^0.16.9 to ^0.16.10 thanks to @dependabot-preview[bot]
• 506: Update nikic/php-parser requirement from ^4.2.3 to ^4.2.4 thanks to @dependabot-preview[bot]
• 507: Update phpunit/phpunit requirement from ^8.3.4 to ^8.3.5 thanks to @dependabot-preview[bot]
• 508: Update vimeo/psalm requirement from 3.5.1 to 3.5.3 thanks to @dependabot-preview[bot]
• 510: Update infection/infection requirement from ^0.13.6 to ^0.14.1 thanks to @dependabot-preview[bot]
• 512: Update squizlabs/php_codesniffer requirement from ^3.4.2 to ^3.5.2 thanks to @dependabot-preview[bot]
• 514: Update infection/infection requirement from ^0.14.1 to ^0.14.2 thanks to @dependabot-preview[bot]
• 515: Update zendframework/zend-code requirement from ^3.3.2 to ^3.4.0 thanks to @dependabot-preview[bot]
• 516: Update phpunit/phpunit requirement from ^8.3.5 to ^8.4.2 thanks to @dependabot-preview[bot]
• 517: Update nikic/php-parser requirement from ^4.2.3 to ^4.2.5 thanks to @dependabot-preview[bot]
• 519: Update symfony/console requirement from ^4.3.4 to ^4.3.6 thanks to @dependabot-preview[bot]
• 520: Correct current failures with psalm 3.6.2 thanks to @Ocramius
• 521: Update vimeo/psalm requirement from 3.5.1 to 3.6.3 thanks to @dependabot-preview[bot]
• 522: Feature: integration with webimpress/safe-writer thanks to @michalbundyra
• 524: Remove wrong comment on chore tasks required on Version thanks to @BackEndTea
• 525: Update nikic/php-parser requirement from ^4.2.5 to ^4.3.0 thanks to @dependabot-preview[bot]
• 527: Update phpunit/phpunit requirement from ^8.4.2 to ^8.4.3 thanks to @dependabot-preview[bot]
• 528: Update infection/infection requirement from ^0.14.2 to ^0.15.0 thanks to @dependabot-preview[bot]
• 529: Update vimeo/psalm requirement from 3.6.3 to 3.7.0 thanks to @dependabot-preview[bot]
• 530: Update symfony/console requirement from ^4.3.6 to ^4.4.1 thanks to @dependabot-preview[bot]
• 532: Stable PHP 7.4 builds - Travis CI config thanks to @michalbundyra
• 533: Update phpunit/phpunit requirement from ^8.4.3 to ^8.5.0 thanks to @dependabot-preview[bot]
• 534: Update vimeo/psalm requirement from 3.7.0 to 3.7.2 thanks to @dependabot-preview[bot]
• 535: Update squizlabs/php_codesniffer requirement from ^3.5.2 to ^3.5.3 thanks to @dependabot-preview[bot]
• 541: Update symfony/console requirement from ^4.4.1 to ^4.4.2 thanks to @dependabot-preview[bot]
• 542: Update zendframework/zend-code requirement from ^3.4.0 to ^3.4.1 thanks to @dependabot-preview[bot]
• 543: Update phpunit/phpunit requirement from ^8.5.0 to ^8.5.1 thanks to @dependabot-preview[bot]
• 546: Migrating from zendframework/zend-code to laminas/laminas-code thanks to @orklah
• 547: Fixs a few small issues that newest Psalm flagged thanks to @muglug
• 548: Fixed code style after replacing Zend with Laminas thanks to @alfredbez
• 550: Change missed occurences of zendframework thanks to @orklah
• 552: Merge 2.5.x into master, end 2.5.x support in favour of 2.6.x thanks to @Ocramius