4.5.1 Top new questions this week

4.5.1.1 Can TeX do ugly typesetting (with poor kerning)?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=413918

This is from my series of questions "Can TeX do weird stuff?" 
Today I want to know if TeX can simulate bad typography. I'm not talking about ugly templates, like wordlike or (god forgive me for this)  ... 
[tex-core] [typography]
 

asked by Phelype Oleinik https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=134574 26 votes

answered by ShreevatsaR https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=48 42 votes

4.5.1.2 biblatex broken overnight

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=413898

As late as last week my setup for biblatex worked fine. Going back to the same project today not even a minimal file compiles: 
\documentclass{article} 
\usepackage{biblatex} 
... 
[biblatex] [errors] [texlive] [bugs]
 

asked by Florian https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=6819 22 votes

answered by Joseph Wright https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=73 27 votes

4.5.1.3 Why does longtable not process \medskip inside a row, but tabular does?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=413473

How can one make longtable not ignore \midskip at start of a table row? 
In the following MWE, I am trying to add little space in a row. It works OK with tabular, but not in longtable. 
Here is a  ... 
[tables] [longtable]
 

asked by Nasser https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=14594 9 votes

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2388 8 votes

4.5.1.4 Move shaded polygon behind chemfig schemes

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=414036

I have the following chemical reaction scheme with a shaded polygon (using link) as shown in MWE below: 
MWE 
\documentclass{article} 
\usepackage{chemfig} 
\begin{document} 
%\schemedebug{true} %  ... 
[tikz-pgf] [chemfig] [draw] [annotations]
 

asked by nxkryptor https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=72911 8 votes

answered by cfr https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=39222 8 votes

4.5.1.5 how to reproduce this diagram

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=414101

i'm trying to reproduce this workflow diagram 
i just tried to reproduce the blocks before the relations but it's freezing when i compile this chunk of code and i'm forced to kill pdflatex 
could  ... 
[tikz-pgf]
 

asked by Edo Youss https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=154340 7 votes

answered by Phelype Oleinik https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=134574 6 votes

4.5.1.6 How do I build hyperref from CTAN?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=413999

When I run 
rm -rf /tmp/foo; mkdir /tmp/foo; cd /tmp/foo 
wgethttp://mirrors.ctan.org/macros/latex/contrib/hyperref.zip 
unzip hyperref; cd hyperref 
latex hyperref.ins 
I get 
--2018-02-06 16:26:40--   ... 
[hyperref] [ctan]
 

asked by Jason Gross https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2066 7 votes

answered by David Carlisle https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1090 6 votes

4.5.1.7 How to encircle a character inside a Latex formula?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=413362

I would like to encircle one character inside a LaTeX formula. An example is 
$f_1 = ...$ or $f_k = ...$, 
where I want to encircle the characters 1 and k. I've found some questions (question 1,  ... 
[tikz-pgf] [symbols] [circles] [text-manipulation]
 

asked by Karlo https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=36500 7 votes

answered by campa https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=82917 7 votes