[Edit: removing old sticky threads as our new SA team begins to manage this forum] *Update 2/14/19* We've been following user feedback, and took some time to discuss internally; we want to share a few updates: LLAPI guaranteed in 2019 LTS build - due to demand for more time to transition and give the new transport more time to mature, we've decided to guarantee that the LLAPI will remain in the engine in the 2019 LTS build at the end of this year, and therefore will be supported with critical fixes in that build until Spring 2022. This is a 1-year extension from the original plan, and we will soon update the original blog post to reflect this change. Plan of Intent for Networking - the networking team has published their current priorities and focus areas to the public git repo - it's their goal to keep this up-to-date with each of the projects we're currently working on. We've been seeing solid progress internally, and we're hopeful that some of the work-in-progress items listed in Github will be in the hands of the community soon. DOTS-compatible - the new networking stack will work with ECS, Job System (for multi-threading), and Burst Compiler to reach the best possible performance and scale. AND, it does not require you to use DOTS for everything, most of your game can still be written in classic unity if you prefer that. HLAPI support LLAPI and new transport - HLAPI will be released soon as a full-source package, and will be supported according to 2018LTS terms, so critical fixes will be provided until Spring 2021. This has not changed from the original plan. For clarity, The HLAPI will support LLAPI and the new transport (once it reaches a sufficient feature set) throughout this transition period. We feel confident that before 2021, the new networking stack will be a much more performant solution than the HLAPI, and we strongly recommend developers move over by this date. *Original Post* Through our connected games initiatives, we’re committed to making multiplayer game development easier, more transparent, and multiplayer-ready by default. To reach these goals, we need to start anew. This means “UNet” features will be gradually deprecated. Here’s what’s impacted, as well as our support timelines. The HLAPI and LLAPI will no longer be included with Unity after 2018.4 (LTS): Critical fixes will be provided for two years following the 2018.4 (LTS) ship date, consistent with Unity’s Long-Term Support policy. The Relay Server and Matchmaker service will operate for at least three years after the 2018.4 (LTS) ship date, with a clear transition plan provided before this date. To learn more about why we are deprecating UNet, and the timelines, see Evolving Multiplayer Games Beyond UNet. Many great games depend on this technology, and we know these changes may have a significant impact on your games; our teams will be actively monitoring this thread for deprecation-related concerns and discussion. Please post here to ensure we monitor and respond to feedback efficiently.