The tool analyzes the application code, updates the project files, checks for breaking changes, and does some automatic code fixes - but developers will still have to do some manual fixes.
Microsoft recommends that developers check the official compatibility guide for any issues when upgrading their applications and provides an open-source upgrade tool called upgrade-assistant. However, there might be runtime or source-code incompatibilities between. NET 6.0 involves a change of one line in the project file to change the target framework version. NET Core 3.1 customers can choose between upgrading to. NET 7.0, a non-LTS version, in November 2022, meaning that the current. NET is 6.0, which Microsoft plans to support until November 12, 2024.
NET a year, alternating between LTS and current versions. NET versions to launch one major version of. NET 7.0, have a shorter support lifecycle of 18 months, as Microsoft will support them for six months after the release of the next LTS version. Non-LTS (or "current") releases, such as. Version 3.1 is what Microsoft calls a long-term-support (LTS) release, having a support lifecycle of three years since the release date. NET Core 3.1 applications will still run after the end of support date, but that customers can be exposed to potential security flaws that will be patched only for supported versions. NET 6 or 7 to still receive official support and security patches. According to Dominique Whittaker, senior program manager at Microsoft, customers using the 3.1 version should move to. NET Core Framework version 3.1, released in 2019, is approaching the end of its support date. NET 6.0 to stay supported for the future, while the developers have mixed feelings about the. NET Core Framework is slated to go out of support on December 13th, 2022. The long-term-support (LTS) version 3.1 of Microsoft.