Dogecoin developers have released a new version of the wallet, in addition to general fixes related to security and performance, the release implies a reduction in transaction fees.
https://github.com/dogecoin/dogecoin/releases/tag/v1.14.5

Important Security Updates
This release contains fixes for 2 high severity vulnerabilities that affect most Dogecoin Core users:

-Remote Code Execution in Dogecoin QT (CVE-2021-3401)
-Sensitive Information Exposure on Unix platforms (CVE-2019-15947)

Fee Reductions:
-the recommended minimum transaction fee is 0.01 DOGE/kb, and
-the recommended dust limit is 1 DOGE, and
-the recommended RBF increment is 0.001 DOGE.