<p dir="auto">This line of code</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="n=512; L=rand(n,n); z=rand(n); b=L\z;"><pre class="notranslate"><code class="notranslate">n=512; L=rand(n,n); z=rand(n); b=L\z;
</code></pre></div>
<p dir="auto">runs in the REPL and in IJUlia with 1.6.3. I get a <code class="notranslate">StackOverflowError:</code>  in IJulia under 1.6.4. Running Monterey. Others report the same problem in vscode and Juno.</p>
<p dir="auto">Please see<br>
<a href="https://discourse.julialang.org/t/downgrade-to-1-6-3/72129/2" rel="nofollow">https://discourse.julialang.org/t/downgrade-to-1-6-3/72129/2</a></p>
<p dir="auto">Hello,<br>
the sum of two symmetric matrices should be flagged as Hermitian<br>
and this seems not the case now.<br>
Here is an example (Julia Version 1.1.0).<br>
The same thing happens when P and Q are complex and also for Symmetric matrices.</p>
<p dir="auto">julia&gt; P<br>
3×3 LinearAlgebra.Hermitian{Float64,Array{Float64,2}}:<br>
3.69851    -0.0364136   0.004914<br>
-0.0364136   0.964787   -0.966531<br>
0.004914   -0.966531    1.7757</p>
<p dir="auto">julia&gt; Q<br>
3×3 LinearAlgebra.Hermitian{Float64,Array{Float64,2}}:<br>
3.05221   2.72049   -0.659437<br>
2.72049   5.69997    0.348603<br>
-0.659437  0.348603   3.45141</p>
<p dir="auto">julia&gt; P+Q<br>
3×3 Array{Float64,2}:<br>
6.75072    2.68407   -0.654523<br>
2.68407    6.66476   -0.617927<br>
-0.654523  -0.617927   5.22712</p>