The installer is located in the "Assets" section at the end of these release notes

Highlights and Dependencies

This release requires ASCOM Platform 6.5 or later https://github.com/ASCOMInitiative/ASCOMPlatform/releases
The Remote Clients are no longer included in the installer - Please use the more functional Platform 6.5 Dynamic Clients instead.

Documentation

Concepts: Alpaca Introduction - background introduction
Installation: ASCOM Remote Documentation - how to install and configure ASCOM Remote.
ASCOM Alpaca API (for developers): ASCOM Alpaca API Reference - how to use and implement the API and device discovery.

Documentation revised to improve clarity and new Alpaca Introduction document added.
Missing or invalid parameters now return HTTP 400 status errors
Installers and executables are now code signed
Body parameter values with no name are now ignored
Client Accept values referencing text or html are now respected when returning error messages.
The + and * codes have been replaced by "All IP Addresses" text in the Setup IP address drop-down list.
The log folder location can now be customised from the setup dialogue.
Logs can now be configured to roll over at a specified time of day.
Logs can now be configured to report UTC rather than local time.
Form PUT parameters can now be supplied in scientific (exponent) format e.g. 0.984567E-02.
The Remote Server now restarts more quicly when the operating IP address is changed.

Added missing support for writing to ICameraV3.Offset
HTTP status 404 error messages referenced 403 instead of 404 in their text.
Null values returned by drivers for Telescope.AxisRates and Telescope.TrackingRates are now handled gracefully.
The Camera.PulseGuide, Camera.StartExposure, Dome.SlewToAltitude, Dome.SlewToAzimuth, Dome.SyncToAzimuth, Focuser.Move now send parameters in the invariant culture as required by the API specification.
The connection log now contains the remote client address rather than the local server address.