Add CTR Electronics Alpha 1 information

CTR-Phoenix.md

@@ -0,0 +1,56 @@
+# CTR-Electronics Phoenix 6
+
+Please read through the requirements and basic example before utilizing the vendordep.
+
+## Requirements
+
+Due to the volatile nature of versions and breaking changes, the below list is provided to clarify compatible WPILib version, compatible Phoenix 6 API version and compatible firmware version.
+
+### WPILib to Phoenix 6 API
+
+- WPILib `2027_alpha1` compatible releases
+  - Phoenix 6 `25.90.0-alpha-1`
+
+### Phoenix 6 API to Firmware
+
+- `25.90.0-alpha-1` compatible Phoenix 6 firmware
+  - Firmware `25.90.0.0`
+
+## Basic Example
+
+SystemCore CAN buses can be used by specifying their interface name. From left to right (left being closest to the power input), the buses are
+
+- `can_s0`
+- `can_s1`
+- `can_s2`
+- `can_s3`
+- `can_s4`
+
+So to initialize a device on the SystemCore bus, you would use 
+
+```java
+// Use the 5th (0-indexed) CAN bus
+public static final TalonFX m_motor = new TalonFX(0, "can_s4");
+
+// If no parameter is provided, it will use can_s0
+public static final TalonFX m_motor = new Talonfx(0);
+```
+
+## Changelog
+
+### 25.90.0-alpha-1
+
+- Devices no longer implement sendable as it has been removed from WPILib.
+
+## Erratas/Known Issues
+
+- Alpha-1: Phoenix 5 is unavailable.
+- Alpha-1: Python wheels are unavailable.
+- Alpha-1: An offline installer is unavailable.
+- Alpha-1: Signal logger does not auto-start on FMS.
+- Alpha-1: Tuner cannot deploy a temporary diagnostic server to the SystemCore. To use Phoenix Tuner X functionality, deploy a blank robot program with a Phoenix 6 device initialized. No other Tuner functionality is affected.
+
+## Download
+
+Vendordep: `https://maven.ctr-electronics.com/release/com/ctre/phoenix6/latest/Phoenix6-25.90.0-alpha-1.json`
+Firmware: Tuner -> For the year dropdown select `2027-alpha-1` -> Firmware will be automatically populated

README.md

@@ -9,4 +9,6 @@ Note that all updated documentation for 2027 changes, new features, etc. can be
 
 ### Vendor Libraries
 
+- [CTR Electronics Phoenix 6](CTR-Phoenix.md)
+
 ### Other