Release 0.4

Refs #6, #13, #15, #16, #17, #21, #24, #25, #35, #37

docs/changelog.md

@@ -1,5 +1,113 @@
 # Changelog
 
+## 0.4 (2023-06-17)
+
+### Prompt templates
+
+{ref}`prompt-templates` is a new feature that allows prompts to be saved as templates and re-used with different variables.
+
+Templates can be created using the `llm templates edit` command:
+
+```bash
+llm templates edit summarize
+```
+Templates are YAML - the following template defines summarization using a system prompt:
+
+```yaml
+system: Summarize this text
+```
+The template can then be executed like this:
+```bash
+cat myfile.txt | llm -t summarize
+```
+Templates can include both system prompts, regular prompts and indicate the model they should use. They can reference variables such as `$input` for content piped to the tool, or other variables that are passed using the new `-p/--param` option.
+
+This example adds a `voice` parameter:
+
+```yaml
+system: Summarize this text in the voice of $voice
+```
+Then to run it (via [strip-tags](https://github.com/simonw/strip-tags) to remove HTML tags from the input):
+```bash
+curl -s 'https://til.simonwillison.net/macos/imovie-slides-and-audio' | \
+  strip-tags -m | llm -t summarize -p voice GlaDOS
+```
+Example output:
+
+> My previous test subject seemed to have learned something new about iMovie. They exported keynote slides as individual images [...] Quite impressive for a human.
+
+The {ref}`prompt-templates` documentation provides more detailed examples.
+
+### Continue previous chat
+
+You can now use `llm` to continue a previous conversation with the OpenAI chat models (`gpt-3.5-turbo` and `gpt-4`). This will include your previous prompts and responses in the prompt sent to the API, allowing the model to continue within the same context.
+
+Use the new `-c/--continue` option to continue from the previous message thread:
+
+```bash
+llm "Pretend to be a witty gerbil, say hi briefly"
+```
+> Greetings, dear human! I am a clever gerbil, ready to entertain you with my quick wit and endless energy.
+```bash
+llm "What do you think of snacks?" -c
+```
+> Oh, how I adore snacks, dear human! Crunchy carrot sticks, sweet apple slices, and chewy yogurt drops are some of my favorite treats. I could nibble on them all day long!
+
+The `-c` option will continue from the most recent logged message.
+
+To continue a different chat, pass an integer ID to the `--chat` option. This should be the ID of a previously logged message. You can find these IDs using the `llm logs` command.
+
+Thanks [Amjith Ramanujam](https://github.com/amjith) for contributing to this feature. [#6](https://github.com/simonw/llm/issues/6)
+
+### New mechanism for storing API keys
+
+API keys for language models such as those by OpenAI can now be saved using the new `llm keys` family of commands.
+
+To set the default key to be used for the OpenAI APIs, run this:
+
+```bash
+llm keys set openai
+```
+Then paste in your API key.
+
+Keys can also be passed using the new `--key` command line option - this can be a full key or the alias of a key that has been previously stored.
+
+See link-to-docs for more. [#13](https://github.com/simonw/llm/issues/13)
+
+### New location for the logs.db database
+
+The `logs.db` database that stores a history of executed prompts no longer lives at `~/.llm/log.db` - it can now be found in a location that better fits the host operating system, which can be seen using:
+
+```bash
+llm logs path
+```
+On macOS this is `~/Library/Application Support/io.datasette.llm/logs.db`.
+
+To open that database using Datasette, run this:
+
+```bash
+datasette "$(llm logs path)"
+```
+You can upgrade your existing installation by copying your database to the new location like this:
+```bash
+cp ~/.llm/log.db "$(llm logs path)"
+rm -rf ~/.llm # To tidy up the now obsolete directory
+```
+The database schema has changed, and will be updated automatically the first time you run the command.
+
+That schema is [included in the documentation](https://llm.datasette.io/en/stable/logging.html#sql-schema). [#35](https://github.com/simonw/llm/issues/35)
+
+### Other changes
+
+- New `llm logs --truncate` option (shortcut `-t`) which truncates the displayed prompts to make the log output easier to read. [#16](https://github.com/simonw/llm/issues/16)
+- Documentation now spans multiple pages and lives at <https://llm.datasette.io/> [#21](https://github.com/simonw/llm/issues/21)
+- Default `llm chatgpt` command has been renamed to `llm prompt`. [#17](https://github.com/simonw/llm/issues/17)
+- Removed `--code` option in favour of new prompt templates mechanism. [#24](https://github.com/simonw/llm/issues/24)
+- Responses are now streamed by default, if the model supports streaming. The `-s/--stream` option has been removed. A new `--no-stream` option can be used to opt-out of streaming.  [#25](https://github.com/simonw/llm/issues/25)
+- The `-4/--gpt4` option has been removed in favour of `-m 4` or `-m gpt4`, using a new mechanism that allows models to have additional short names.
+- The new `gpt-3.5-turbo-16k` model with a 16,000 token context length can now also be accessed using `-m chatgpt-16k` or `-m 3.5-16k`. Thanks, Benjamin Kirkbride. [#37](https://github.com/simonw/llm/issues/37)
+- Improved display of error messages from OpenAI. [#15](https://github.com/simonw/llm/issues/15)
+
 ## 0.3 (2023-05-17)
 
 - `llm logs` command for browsing logs of previously executed completions. [#3](https://github.com/simonw/llm/issues/3)

docs/templates.md

@@ -1,3 +1,4 @@
+(prompt-templates)=
 # Prompt templates
 
 Prompt templates can be created to reuse useful prompts with different input data.

setup.py

@@ -1,7 +1,7 @@
 from setuptools import setup
 import os
 
-VERSION = "0.3"
+VERSION = "0.4"
 
 
 def get_long_description():