Add 6.0.0 announcement article.

Author: jcamiel

sites/hurl.dev/_posts/2024-12-04-announcing-hurl-6.0.0.md

@@ -33,7 +33,85 @@ jsonpath "$.id" matches /\d{4}/     # Check the format of the id
 
 ## Generating Dynamic Values with Functions
 
-With Hurl 6.0.0, we have introduced [functions]
+Before 6.0.0, Hurl files could be only [templatized] with variables. Variables are either injected in the command line,
+in `[Options]` section or through [captures].
+
+For instance, this Hurl file:
+
+```hurl
+PUT https://example.org/api/hits
+Content-Type: application/json
+{
+"key0": "{{a_string}}",
+"key1": {{a_bool}},
+"key2": {{a_null}},
+"key3": {{a_number}}
+}
+```
+
+When called with these options:
+
+```shell
+hurl --variable a_string=apple \
+       --variable a_bool=true \
+       --variable a_null=null \
+       --variable a_number=42 \
+       test.hurl
+```
+
+runs a PUT request with the following JSON body:
+
+```
+{
+    "key0": "apple",
+    "key1": true,
+    "key2": null,
+    "key3": 42
+}
+```
+
+
+With Hurl 6.0.0, we have introduced [functions] to generate dynamic values. Current functions are:
+
+- `newUuid` to generate an [UUID v4 random string],
+- `newDate` to generate an [RFC 3339] UTC date string, at the current time.
+
+
+In the following example, we use `newDate` to generate a dynamic query parameter:
+
+```hurl
+GET https://example.org/api/foo
+[QueryStringParams]
+date: {{newDate}}
+HTTP 200
+```
+
+We run a `GET` request to `https://example.org/api/foo?date=2024%2D12%2D02T10%3A35%3A44%2E461731Z` where the `date`
+query parameter value is `2024-12-02T10:35:44.461731Z` URL encoded.
+
+In this second example, we use `newUuid` function to generate an email dynamically:
+
+```hurl
+POST https://example.org/api/foo
+{
+  "name": "foo",
+  "email": "{{newUuid}}@test.com"
+}
+```
+
+When run, the request body will be:
+
+```
+{
+  "name": "foo",
+  "email": "[email protected]"
+}
+```
+
+We've started small with these two functions, but we plan to add many more; don't hesitate to open a discussion for
+your use case!  
+
+
 
 
 ## curl Run Export
@@ -72,7 +150,8 @@ We'll be happy to hear from you, either for enhancement requests or for sharing
 [Hurl]: https://hurl.dev
 [curl]: https://curl.se
 [functions]: {% link _docs/templates.md#functions %}
-
+[UUID v4 random string]: https://en.wikipedia.org/wiki/Universally_unique_identifier
+[RFC 3339]: https://www.rfc-editor.org/rfc/rfc3339
 
 [in our release note]: https://github.com/Orange-OpenSource/hurl/releases/tag/5.0.0
 [𝕏 / Twitter]: https://x.com/HurlDev