--- title: ProxyLogger, MIME deprecations, and more fixes | daily.dev description: This week in Rails covers several notable changes: a fix making add_foreign_key with if_not_exists: true properly reversible in migrations; ActiveJob retry_on... canonical: https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-bupjwrxap twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: ProxyLogger, MIME deprecations, and more fixes | daily.dev og:description: This week in Rails covers several notable changes: a fix making add_foreign_key with if_not_exists: true properly reversible in migrations; ActiveJob retry_on... og:url: https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-bupjwrxap og:image: https://api.daily.dev/og/posts/bupjwrxap.png og:image:alt: ProxyLogger, MIME deprecations, and more fixes og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # ProxyLogger, MIME deprecations, and more fixes **[RUBYLAND](https://daily.dev/sources/rubyla)** · 3 min read · 0 upvotes · 0 comments ## Summary This week in Rails covers several notable changes: a fix making add_foreign_key with if_not_exists: true properly reversible in migrations; ActiveJob retry_on now accepting Float values for :wait; a new ActiveSupport::ProxyLogger that forwards logs to another logger at an independent severity level; deprecation of Mime::SET, Mime::LOOKUP, and Mime::EXTENSION_LOOKUP in favor of public API methods; inclusion of call options in Cache#exist? instrumentation payloads; improved PostgreSQL timestamp/time precision reporting in Active Record; and a new product reviews tutorial added to the Rails guides. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [ProxyLogger, MIME deprecations, and more fixes](https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-u2zb9fllh) · This Week in Rails · 0 upvotes · 0 comments - [This Week in Rails: Faster Logs, Reliable Parallel Tests, and Key Deprecations](https://daily.dev/posts/this-week-in-rails-faster-logs-reliable-parallel-tests-and-key-deprecations-vczhuavgw) · RUBYLAND · 0 upvotes · 0 comments - [Better guides, better framework](https://daily.dev/posts/better-guides-better-framework-u808pzsy9) · Rails · 0 upvotes · 0 comments --- Tags: [#ruby](https://daily.dev/tags/ruby), [#rails](https://daily.dev/tags/rails) [View this post on daily.dev](https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-bupjwrxap) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"ProxyLogger, MIME deprecations, and more fixes","url":"https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-bupjwrxap","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-bupjwrxap"},"datePublished":"2026-07-03T14:54:20.990Z","dateModified":"2026-07-03T15:13:54.683Z","description":"This week in Rails covers several notable changes: a fix making add_foreign_key with if_not_exists: true properly reversible in migrations; ActiveJob retry_on...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8e4f5a3c3e5361719ef48f4eb467a7f8?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8e4f5a3c3e5361719ef48f4eb467a7f8?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"RUBYLAND","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"RUBYLAND","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/rubyla","url":"https://daily.dev/sources/rubyla"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/proxylogger-mime-deprecations-and-more-fixes-bupjwrxap","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ruby,rails","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"RUBYLAND","item":"https://daily.dev/sources/rubyla"},{"@type":"ListItem","position":3,"name":"ProxyLogger, MIME deprecations, and more fixes"}]} ```