| Document |  | 
| Device | Introduction:Added
                                                a note for automotive data sheetsChanged text to align with all tinyAVR® 0- and 1-series data
                                                sheets
Retention
                                        endurance numbers addedData Sheet
                                        Clarification Document chapter added Ordering
                                        Information moved I/O
                                        Multiplexing and Considerations updated
 | 
| Configuration and User Fuses | RSTPINCFG:
                                        Time-out after a system reset when fused to be GPIO
                                        explained
 | 
| BOD - Brown-out Detector | Removed
                                        levels not characterized by minimum and maximum valuesAdded a note
                                        for typical values and reference to electrical
                                        characteristics
 | 
| TCA | Added a note
                                        for alternative WOn pins
 | 
| USART | Clarified
                                        One-Wire modeClarified
                                        text about Disabling the Transmitter Reverted 32±6
                                        to 16±3 baud samples in RXMODE bits in CTRLB
 | 
| SPI | Clarified
                                        functionality for SPI SS pin
 | 
| CRCSCAN | Removed
                                        unsupported BACKGROUND and CONTINUOUS scan
                                        functionality
 | 
| ADC - Analog-to-Digital Converter | Added missing
                                        calibration register
 | 
| UPDI | Added a
                                        warning for ESD protectionGPIO
                                        functionality disabled for a period after a system reset,
                                        changed from ms to clock cycles
 | 
| Electrical Characteristics | Added a note for Chip Erase in General Operating
                                        RatingsAdded
                                        Electrical Characteristics for PTCCorrected the
                                        description for some symbols in the I/O Pin Characteristics
                                        table
 | 
| Errata | Errata moved
                                        to ATtiny416/816 Silicon Errata and Data Sheet
                                            Clarification Document
 | 
| Ordering Information | Updated with
                                        product page links and ordering codes
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| Product Identification System | Updated with
                                        Tube and Tray packing media
 | 
| Package Drawings | Updated
                                        package drawings to Microchip standard
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