docs: Update release notes for v0.9.0 release

Signed-off-by: Kevin O'Connor <[email protected]>

docs/Config_Changes.md

@@ -6,6 +6,8 @@ All dates in this document are approximate.
 
 # Changes
 
+20201020: Klipper v0.9.0 released.
+
 20200902: The RTD resistance-to-temperature calculation for MAX31865
 converters has been corrected to not read low. If you are using such a
 device, you should recalibrate your print temperature and PID settings.

docs/Releases.md

@@ -1,6 +1,40 @@
 History of Klipper releases. Please see
 [installation](Installation.md) for information on installing Klipper.
 
+Klipper 0.9.0
+=============
+
+Available on 20201020. Major changes in this release:
+* Support for "Input Shaping" - a mechanism to counteract printer
+ resonance. It can reduce or eliminate "ringing" in prints.
+* New "Smooth Pressure Advance" system. This implements "Pressure
+ Advance" without introducing instantaneous velocity changes. It is
+ also now possible to tune pressure advance using a "Tuning Tower"
+ method.
+* New "webhooks" API server. This provides a programmable JSON
+ interface to Klipper.
+* The LCD display and menu are now configurable using the Jinja2
+ template language.
+* The TMC2208 stepper motor drivers can now be used in "standalone"
+ mode with Klipper.
+* Improved BL-Touch v3 support.
+* Improved USB identification. Klipper now has its own USB
+ identification code and micro-controllers can now report their
+ unique serial numbers during USB identification.
+* New kinematic support for "Rotary Delta" and "CoreXZ" printers.
+* Micro-controller improvements: support for stm32f070, support for
+ stm32f207, support for GPIO pins on "Linux MCU", stm32 "HID
+ bootloader" support, Chitu bootloader support, MKS Robin bootloader
+ support.
+* Improved handling of Python "garbage collection" events.
+* Many additional modules added: adc_scaled, adxl345, bme280,
+ display_status, extruder_stepper, fan_generic,
+ hall_filament_width_sensor, htu21d, homing_heaters, input_shaper,
+ lm75, print_stats, resonance_tester, shaper_calibrate, query_adc,
+ graph_accelerometer, graph_extruder, graph_motion, graph_shaper,
+ graph_temp_sensor, whconsole
+* Several bug fixes and code cleanups.
+
 Klipper 0.8.0
 =============