Different comma placement in textcite and parencite,

Question

I have a problem with 'mit-quotes'. There is always a comma between 'et al.' and the year in textcite, but I only want this comma in parencite,

What I want:

• when I use \textcite I want this "Author et al. (2000)"

• when I use \parencite I want this "(Author et al., 2000)"

I had no problem with this before updating biber and biblatex. Just a month ago with biblatex 3.0 this worked fine. But as I was not able to do a downgrade for biblatex, I wanted to ask for a solution with the newest versions of biber and biblatex.

Here is my minimal working example:

\documentclass[12pt, a4paper, oneside, toc=graduated, fleqn,listof=totoc,bibliography=totoc, captions=bottombeside]{scrbook}
\renewcommand*\chapterheadstartvskip{\vspace*{0\baselineskip}}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}
\usepackage[ansinew]{inputenc} 

\usepackage[backend=biber, natbib=true,citestyle=authoryear,bibstyle=authoryear, uniquename=false,firstinits=true]{biblatex}
\usepackage[babel,german=quotes]{csquotes}

\ExecuteBibliographyOptions{bibencoding=latin1,bibwarn=true,sortlocale=DE,isbn=false,url=false,doi=false,eprint=false,clearlang=true,maxbibnames=99,maxcitenames=2,uniquelist=false,sorting=nyt}
\DefineBibliographyStrings{ngerman}{andothers={\textit{et~al.}}}
\AtBeginBibliography{% 
    \renewcommand*{\mkbibnamelast}[1]{\textsc{#1}}}
\renewcommand\nameyeardelim{, }

 \bibliography{lit.bib}
\usepackage{filecontents}

\begin{filecontents}{lit.bib}
@book{Peng.2000,
    author = {Peng and Hopper},
    year = {2000},
    title = {Title},
    publisher = {Publisher},
}

    @book{Hans.2014,
        author = {Hans and Gretel and Grimm},
        year = {2014},
        title = {Title},
        publisher = {Publisher},
    }
\end{filecontents}



\begin{document}

 \cite{Peng.2000}\\
 \textcite{Peng.2000}\\
    \parencite{Peng.2000}\\

\cite{Hans.2014}\\
\textcite{Hans.2014}\\
\parencite{Hans.2014}

\end{document}

Thanks in advance for any help provided.