user6395: Which version of the JSON-RPC protocol does Bitcoin use? 1.0 or 2.0? (This question is asked, but that was almost 3 years ago. link)
If try to use version 2.0 all works well curl --data-binary '{"jsonrpc": "2.0", "id":"curltest", "method": "getinfo", "params": [] }' -H 'content-type: text/plain;' http://bitcasino:qwerty@127.0.0.1:8332/
But named parameters are not supported (or I dont know right parameter names).
Also I fount in bitcoind repo file with declared json-rpc error codes: link. Codes named as Standard JSON-RPC 2.0 errors Is it metioned parts, that not specified in 1.0?
So what is the official position now? Still 1.0 ?

user53: 1.0, but with a couple of 2.0 features:
"Batch" calls are supported.
And the 2.0 error semantics are used.
Passing named parameters is not supported.  "Patches welcome" if you want to add full 2.0 support.

6395: <p>Which version of the JSON-RPC protocol does Bitcoin use? 1.0 or 2.0? (This question is asked, but that was almost 3 years ago. <a href="https://bitcoin.stackexchange.com/questions/7541/which-version-of-the-json-rpc-protocol-does-bitcoin-use">link</a>)</p>

<p>If try to use version 2.0 all works well <code>curl --data-binary '{"jsonrpc": "2.0", "id":"curltest", "method": "getinfo", "params": [] }' -H 'content-type: text/plain;' http://bitcasino:qwerty@127.0.0.1:8332/</code>
But named parameters are not supported (or I dont know right parameter names).</p>

<p>Also I fount in bitcoind repo file with declared json-rpc error codes: <a href="https://github.com/bitcoin/bitcoin/blob/master/src/bitcoinrpc.h" rel="nofollow noreferrer">link</a>. Codes named as <code>Standard JSON-RPC 2.0 errors</code> Is it metioned <code>parts, that not specified in 1.0</code>?</p>

<p>So what is the official position now? Still 1.0 ?</p>
 53: <p>1.0, but with a couple of 2.0 features:</p>

<p>"Batch" calls are supported.</p>

<p>And the 2.0 error semantics are used.</p>

<p>Passing named parameters is not supported.  "Patches welcome" if you want to <a href="https://github.com/bitcoin/bitcoin/issues/2960" rel="nofollow">add full 2.0 support</a>.</p>
