List Events changedapi/beta/sessions/events/list
Nearest release: v2.1.286, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Recorded here
Lines+158added
Lines−166removed
From line
135
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits17to this page, all time
The whole hunk
from line 135, old and new numbered
/
from line 135
135135
136136 - `string`
137137
138 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
138 - `"message-batches-2024-09-24"`
139139
140 - `"message-batches-2024-09-24"`
140 - `"prompt-caching-2024-07-31"`
141141
142 - `"prompt-caching-2024-07-31"`
142 - `"computer-use-2024-10-22"`
143143
144 - `"computer-use-2024-10-22"`
144 - `"computer-use-2025-01-24"`
145145
146 - `"computer-use-2025-01-24"`
146 - `"pdfs-2024-09-25"`
147147
148 - `"pdfs-2024-09-25"`
148 - `"token-counting-2024-11-01"`
149149
150 - `"token-counting-2024-11-01"`
150 - `"token-efficient-tools-2025-02-19"`
151151
152 - `"token-efficient-tools-2025-02-19"`
152 - `"output-128k-2025-02-19"`
153153
154 - `"output-128k-2025-02-19"`
154 - `"files-api-2025-04-14"`
155155
156 - `"files-api-2025-04-14"`
156 - `"mcp-client-2025-04-04"`
157157
158 - `"mcp-client-2025-04-04"`
158 - `"mcp-client-2025-11-20"`
159159
160 - `"mcp-client-2025-11-20"`
160 - `"dev-full-thinking-2025-05-14"`
161161
162 - `"dev-full-thinking-2025-05-14"`
162 - `"interleaved-thinking-2025-05-14"`
163163
164 - `"interleaved-thinking-2025-05-14"`
164 - `"code-execution-2025-05-22"`
165165
166 - `"code-execution-2025-05-22"`
166 - `"extended-cache-ttl-2025-04-11"`
167167
168 - `"extended-cache-ttl-2025-04-11"`
168 - `"context-1m-2025-08-07"`
169169
170 - `"context-1m-2025-08-07"`
170 - `"context-management-2025-06-27"`
171171
172 - `"context-management-2025-06-27"`
172 - `"model-context-window-exceeded-2025-08-26"`
173173
174 - `"model-context-window-exceeded-2025-08-26"`
174 - `"skills-2025-10-02"`
175175
176 - `"skills-2025-10-02"`
176 - `"fast-mode-2026-02-01"`
177177
178 - `"fast-mode-2026-02-01"`
178 - `"output-300k-2026-03-24"`
179179
180 - `"output-300k-2026-03-24"`
180 - `"user-profiles-2026-03-24"`
181181
182 - `"user-profiles-2026-03-24"`
182 - `"user-profiles-2026-08-18"`
183183
184 - `"user-profiles-2026-08-18"`
184 - `"user-profiles-2026-09-04"`
185185
186 - `"user-profiles-2026-09-04"`
186 - `"advisor-tool-2026-03-01"`
187187
188 - `"advisor-tool-2026-03-01"`
188 - `"managed-agents-2026-04-01"`
189189
190 - `"managed-agents-2026-04-01"`
190 - `"cache-diagnosis-2026-04-07"`
191191
192 - `"cache-diagnosis-2026-04-07"`
192 - `"dreaming-2026-04-21"`
193193
194 - `"dreaming-2026-04-21"`
194 - `"thinking-token-count-2026-05-13"`
195195
196 - `"thinking-token-count-2026-05-13"`
196 - `"server-side-fallback-2026-06-01"`
197197
198 - `"server-side-fallback-2026-06-01"`
198 - `"server-side-fallback-2026-07-01"`
199199
200 - `"server-side-fallback-2026-07-01"`
200 - `"fallback-credit-2026-06-01"`
201201
202 - `"fallback-credit-2026-06-01"`
202 - `"fallback-credit-2026-07-01"`
203203
204 - `"fallback-credit-2026-07-01"`
204 - `"agent-memory-2026-07-22"`
205205
206 - `"agent-memory-2026-07-22"`
206 - `"mid-conversation-tool-changes-2026-07-01"`
207207
208 - `"mid-conversation-tool-changes-2026-07-01"`
208 - `"compact-2026-01-12"`
209209
210 - `"compact-2026-01-12"`
210 - `"computer-use-2025-11-24"`
211211
212 - `"computer-use-2025-11-24"`
212 - `"mcp-tunnels-2026-06-22"`
213213
214 - `"mcp-tunnels-2026-06-22"`
214 - `"structured-outputs-2025-11-13"`
215215
216 - `"structured-outputs-2025-11-13"`
216 - `"task-budgets-2026-03-13"`
217217
218 - `"task-budgets-2026-03-13"`
218 - `"thinking-display-updates-2026-08-18"`
219219
220 - `"thinking-display-updates-2026-08-18"`
220 - `"ce-user-management-2026-07-13"`
221221
222 - `"ce-user-management-2026-07-13"`
222 - `"mid-conversation-output-config-2026-07-01"`
223223
224 - `"mid-conversation-output-config-2026-07-01"`
224 - `"thinking-binding-controls-2026-08-01"`
225225
226 - `"thinking-binding-controls-2026-08-01"`
226 - `"mid-conversation-system-clear-at-2026-08-21"`
227227
228 - `"mid-conversation-system-clear-at-2026-08-21"`
228 - `"compact-2026-09-04"`
229229
230 - `"compact-2026-09-04"`
230 - `"inline-tools-2026-09-15"`
231231
232 - `"inline-tools-2026-09-15"`
232 - `"mcp-client-2026-09-15"`
233233
234 - `"mcp-client-2026-09-15"`
235
236234- `"anthropic-workspace-id": optional string`
237235
238236 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 1759
17611759
17621760 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
17631761
1764 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
1762 - `"claude-sonnet-5-5"`
17651763
1766 The model that will power your agent.
1764 Efficient model for coding and agents
17671765
1768 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
1766 - `"claude-opus-5-5"`
17691767
1770 - `"claude-sonnet-5-5"`
1768 Powerful intelligence for coding, knowledge work, and long-running agents
17711769
1772 Efficient model for coding and agents
1770 - `"claude-fable-5-1"`
17731771
1774 - `"claude-opus-5-5"`
1772 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
17751773
1776 Powerful intelligence for coding, knowledge work, and long-running agents
1774 - `"claude-sonnet-5"`
17771775
1778 - `"claude-fable-5-1"`
1776 Efficient model for coding and agents
17791777
1780 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
1778 - `"claude-fable-5"`
17811779
1782 - `"claude-sonnet-5"`
1780 Next generation of intelligence for the hardest knowledge work and coding problems
17831781
1784 Efficient model for coding and agents
1782 - `"claude-opus-5"`
17851783
1786 - `"claude-fable-5"`
1784 Powerful intelligence for long-running agents and coding
17871785
1788 Next generation of intelligence for the hardest knowledge work and coding problems
1786 - `"claude-opus-4-8"`
17891787
1790 - `"claude-opus-5"`
1788 Powerful intelligence for long-running agents and coding
17911789
1792 Powerful intelligence for long-running agents and coding
1790 - `"claude-opus-4-7"`
17931791
1794 - `"claude-opus-4-8"`
1792 Powerful intelligence for long-running agents and coding
17951793
1796 Powerful intelligence for long-running agents and coding
1794 - `"claude-opus-4-6"`
17971795
1798 - `"claude-opus-4-7"`
1796 Powerful intelligence for long-running agents and coding
17991797
1800 Powerful intelligence for long-running agents and coding
1798 - `"claude-sonnet-4-6"`
18011799
1802 - `"claude-opus-4-6"`
1800 Best combination of speed and intelligence
18031801
1804 Powerful intelligence for long-running agents and coding
1802 - `"claude-haiku-4-5"`
18051803
1806 - `"claude-sonnet-4-6"`
1804 Fastest model with near-frontier intelligence
18071805
1808 Best combination of speed and intelligence
1806 - `"claude-haiku-4-5-20251001"`
18091807
1810 - `"claude-haiku-4-5"`
1808 Fastest model with near-frontier intelligence
18111809
1812 Fastest model with near-frontier intelligence
1810 - `"claude-opus-4-5"`
18131811
1814 - `"claude-haiku-4-5-20251001"`
1812 Powerful intelligence for long-running agents and coding
18151813
1816 Fastest model with near-frontier intelligence
1814 - `"claude-opus-4-5-20251101"`
18171815
1818 - `"claude-opus-4-5"`
1816 Powerful intelligence for long-running agents and coding
18191817
1820 Powerful intelligence for long-running agents and coding
1818 - `"claude-sonnet-4-5"`
18211819
1822 - `"claude-opus-4-5-20251101"`
1820 High-performance model for agents and coding
18231821
1824 Powerful intelligence for long-running agents and coding
1822 - `"claude-sonnet-4-5-20250929"`
18251823
1826 - `"claude-sonnet-4-5"`
1827
1828 High-performance model for agents and coding
1829
1830 - `"claude-sonnet-4-5-20250929"`
1831
1832 High-performance model for agents and coding
1824 High-performance model for agents and coding
18331825
18341826 - `string`
18351827
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