# Ocean for Petrel News

> [Petrel 2026.1 Preview 1](https://sdc.software.slb.com/download-content/view?item=56288) and [Ocean for Petrel 2026.1](https://sdc.software.slb.com/download-content/view?item=56365) has been released and is downloadable from the SLB Software Download Center.


> All Ocean API’s marked as Obsolete in Ocean for Petrel 2024 and older will be removed in Petrel 2026.
[Download deprecated API list](/assets/petrel-2024.1-deprecated-apis.9d88222747dfe0e3ed5094f9ce7d7972ac5b0f832c9add3768ab8fd6ee490667.c2774939.xlsx)


> Several library changes have been made in Petrel 2026 in order to keep up with vulnerabilities and prepare for a long term switch from .NET Framework to .NET in a future major release of Petrel.
You can access the list of library changes in the Ocean for Petrel SDK in Visual Studio.


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