# 3.16.1 Release Notes Squirro 3.16.1 was released on June 11, 2026. Learn more about the [Squirro Release Process](../squirro-release-process.md#getting-squirro-process) page. ## Improvements - Additional detector in the privacy layer for more accurate PII masking. ## Bug Fixes - Language-specific fields (`body`, `summary`, `title`, `generated_summary`) containing byte values not indexed correctly. - Masked content not correctly restored by the privacy layer. - A single invalid link in an item body or link field preventing the entire item from being indexed. - Agent responses failing with a bad request error when PII masking was turned on. - Ingester failing with an error when retrying a failed batch whose data source had been deleted. - Ingestion batches with invalid data retried endlessly instead of being marked as failed. ## Installation and Upgrade For new installations, find step-by-step instructions on the [Install and Manage Squirro with Ansible](../../install/ansible/index.md#ansible) page (recommended) and [Installing Squirro on Linux](../../install/linux.md#install-linux) pages. To upgrade an existing installation, see the [Upgrading Squirro](../../install/upgrade.md#install-upgrade) page.