# Nightly 8.1 Changelogs - 2021 **URL:** \ **Category:** Ignition Early Access\ **Created:** [January 19, 2021, 7:32pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410 "2021-01-19T19:32:07Z")\ **Posts on this page:** 1\ **Showing post:** 128
**Author:** ![sreis](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/sreis/32/14631_2.png) [@sreis](https://forum.inductiveautomation.com/u/sreis)\ **Post date:** [August 2, 2021, 2:41pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410/128 "2021-08-02T14:41:01Z")
Nightly Changelog: 8.1.9-b20210802 ## Security **1953: Add Support for Proxy Forwarding of Remote HTTP Client Details** Added a new setting in the Gateway Web Interface \> Config \> Networking \> Web Server page under the "HTTP Settings" section named "Use Proxy Forwarded Headers" which allows the Gateway to use a reverse-proxy's HTTP client details instead of the reverse-proxy itself. **1260: Resolve hostname from session IP so the Gateway can leverage host-based Security Zones** - Added a new setting in the Gateway Web Interface \> Config \> Networking \> Web Server page under the "HTTP Settings" section named "Resolve Client Hostnames" which allows the Gateway's web server to perform reverse-DNS lookups of HTTP client IP addresses in order to use the hostname for Security Zones - Perspective's session.props.host session property now uses the resolved HTTP client hostname if the above setting is enabled, otherwise it falls back to the IP address - Added a new session property session.props.address to Perspective which always contains the remote HTTP client's IP address **IGN-3234 Ignition Exchange Routes are vulnerable to RCE via ZIP-Slip** Added various defenses against potential zip-slip and path traversal vulnerabilities. ## Connectivity **3186: Siemens Driver issue reading/writing to Counters (S7-300)** Fixed a bug in the Siemens driver where timers/counters were being incorrectly addressed when reading/writing from an S7-300. ## Enterprise **IGN-3152 Not all remote alarms show up on the central Gateway when the alarm mode is set to subscribed** Remote alarm subscriptions will no longer drop some alarm events when a large volume of remote alarms occur at once. ## Infrastructure **3404 Allow resolveHostNames and useProxyForwardedHeader properties to persist through container restart** Docker image now supports passing arbitrary "gateway.\*=" key/value pairs for the gateway.xml after the double-hyphen in the command args, similar to the existing capability for JVM/wrapper args. --- _[View the full topic](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410)._