# League of Legends 9.21 — Patch 9.21 notes - Product: League of Legends (https://whatsnew.fyi/product/league-of-legends) - Vendor: Riot Games - Date: 2019-10-18 - Version: 9.21 - Original notes: https://www.leagueoflegends.com/en-us/news/game-updates/patch-9-21-notes/ - Permalink: https://whatsnew.fyi/product/league-of-legends/releases/9.21 - Labels: Platforms: Windows, macOS What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog. Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'. --- - **added** — URF game mode is now available as a one-time experiment to celebrate League's 10-year anniversary - **changed** — URF includes balance adjustments for champions and runes to keep games snappier and less solved - **changed** — Garen can no longer stack spin casts in URF - **changed** — URF extension granted with official end date moved to November 9, 2019 at 7:00PM PT due to initial launch day unavailability Hi. Happy post-10-year! Did you get to catch the team's stream? We loved getting to answer your questions, play with some of you, and [work on fixing some bugs that you outlined on the Boards](https://boards.na.leagueoflegends.com/en/c/developer-corner/w9EtnBBk-bring-us-your-bugs-celebrating-10-years-of-lol). Thank you for interacting with us on that very special day. We hope you enjoyed all the amazing things coming to League of Legends soon, including the [preseason changes](https://na.leagueoflegends.com/en/news/game-updates/gameplay/preseason-2020-gameplay-rise-elements) we've been alluding to for the past couple of patches. The bulk of our time is going into preparing for the Rise of the Elements gameplay update, but some notable work going live this patch includes follow-ups to the champions that received bigger changes in 9.20. From all the past, present, and future writers of Patch Notes, thank you for making the last 10 years awesome. Here's to another 10 years of dumb jokes, obscure references, and "CTRL+F __, no results?" comments! Hanna "shio shoujo" Woo Mid-Patch Updates 11/01/2019 URF Update No balance changes in this update, but we have some news for all you Golden Spatula wielders! We know that some of you were unable to play URF on the day it first turned on so we're extending it by one day! URF will officially turn off on November 9, 2019 at 7:00PM PT. We hope you've been enjoying it as much as we have! 10/30/2019 URF Balance Changes As promised, we'll be reacting more quickly to out-of-line champions during this iteration of URF! These changes are meant to bring a few of the highest and lowest win-rate champions towards the middle. Champions CAMILLE +10% damage dealt & -10% damage taken ⇒ +5% damage dealt & -5% damage taken CASSIOPEIA -22% damage dealt ⇒ -15% damage dealt & -10% healing FIORA Unchanged ⇒ -10% damage dealt & -5% healing KALISTA +20% damage dealt ⇒ +10% damage dealt KATARINA +15% damage dealt & -10% damage taken ⇒ +10% damage dealt & -5% damage taken PYKE -10% healing ⇒ -5% healing RAMMUS +10% damage dealt & -10% damage taken ⇒ +15% damage dealt & -12% damage taken Runes DARK HARVEST 20-60 base damage & 25% bonus AD ratio ⇒ 10-50 base damage & 20% bonus AD ratio 10/28/2019 URF is now live! We’re bringing back URF as a one-time experiment to celebrate League’s 10-year anniversary. From now until November 8, jump into cannons, wreak havoc, and rapid fire it up on Summoner's Rift. As promised in the[/dev article on Nexus](https://nexus.leagueoflegends.com/en-us/2019/10/dev-lets-talk-about-urf/), we've implemented some balance changes, similar to the way we did them in ARAM earlier this year, to keep the games snappier and less "solved." Champions Due to our extended testing window on PBE, we’ve been able to utilize a similar balancing approach to ARAM for URF, dialing in the approach specifically for the champions that really pop off. We’ve tried to make sure we adjusted champions in ways that do not hamper their classic URF patterns, while also not invalidating other champions as reasonable options. The changes below are the adjustments made from how each champ normally is on Summoner's Rift. AATROX +25% damage dealt & -25% damage taken AHRI -8% damage dealt AKALI +15% damage dealt ALISTAR +5% damage dealt & -10% damage taken ANIVIA +15% damage dealt & -10% damage taken AURELION SOL +10% damage dealt & -10% damage taken BARD +20% damage dealt & -10% damage taken BRAUM +10% damage dealt & -25% damage taken CAMILLE +10% damage dealt & -10% damage taken CASSIOPEIA -22% damage dealt CORKI +10% damage dealt DARIUS +10% damage dealt & -10% damage taken DIANA -5% damage dealt ELISE +10% damage dealt & -10% damage taken EVELYNN +20% damage dealt FIZZ -5% damage dealt GANGPLANK +15% damage dealt GAREN Eliminated the ability to stack spin casts & -10% damage taken GNAR +10% damage dealt & -10% damage take _[Truncated at 4000 characters — full notes: https://www.leagueoflegends.com/en-us/news/game-updates/patch-9-21-notes/]_