The current OasisDEX contract (0x794e6e91555438aFc3ccF1c5076A74F42133d08D) expires and will automatically shut down on 04-February-2021 at 12:00 AM UTC (2021-02-04 T12:00:00+00:00). After this date, the contract will no longer allow the creation of new orders. At the same time, anyone will be able to cancel any order placed with this contract.
An upgraded version of OasisDEX – OasisDEX 1.1 – will be deployed prior to the old contract’s expiration date. OasisDEX 1.1 implements minimal changes that remove any remaining “admin” functions, including the expiration date.
For the details, please refer to https://oasisdex.com/docs/announcements/oasis1-1